Science - 10 Multiple Choice Questions (MCQ) Group -A

                         Unit :1   Scientific Learning
                         Group: A  , 
           Multiple Choice Questions(MCQ)

1.How many types of variables are there?
a. 2     b. 3        c.       4        d.       5 
Correct Answer b. 3
2.The variable whose value can be determined by the user
.........is called variable.
a. Dependent  b. Independent    c. Controlled  d.   Constant
Correct Answer b. Independent
3 .The  value depends on other variables and the user cannot determine its value directly is called ........ variable.
a.   Dependent     b. Controlled   c.   Independent   d.   Constant
Correct Answer  a.Dependent    
4.The variable that is controlled during an experiment is called   variable.
a.    Independent        b. Controlled    c   .Dependent       d. Controlled and dependent
Correct Answer b. Controlled

5. The unit of mass is called a fundamental unit, because  
a. It depends on other units of measurement.
b. It does not depend on other units of measurement.
c. It is easy to measure.
d. It depends only on two units of measurement
Correct Answer b. It does not depend on other units of measurement.
6.  Identify the group of fundamental units from the following.
  a. kg. Pa, m, s        b. kg. m, K, A   c. kg. N. Pa, W    d. m. s, N. W
Correct Answer  b. kg. m, K, A
7.   Which of the following is the group of derived units?
.a. m, s. Pa, N   b. Pa, N. m/s,  m/s2    c. k. m, kg, s   d. kg, K. Pa, N
Correct Answer b. Pa, N. m/s,  m/s2
8. Identify the fundamental units involved in the unit watt (W).
a. kg, m and s     b. kg, m and cm    c. kg, m and K   d. kg. m and N
Correct Answer a. kg, m and s
9. Which of the following are the fundamental units involved in the unit of pressure?
 a. kg/ms2      b. kg m²/s²      c. g/ms2      d. kg/m³
Correct Answer a. kg/ms
10. Identify the physical quantity related to the given units.
(i) kg m2/s3           (ii) kg m/s2
 a. (i)    Power     (ii) Pressure
b. (i)Pressure    (ii) Power)
c. (i)Force (ii) Pressure
d. (i)   Pressure (ii)    Force
Correct Answer a. (i)    Power     (ii) Pressure
11. In a research question, what is the effect of heat in solubility of sugar, identify the independent and dependent variable.
(i ) Temperature of water (°C)
(ii) Amount of sugar that can dissolve completely in water) (in gram)
(iii) Amount of water) (100 g)
(iv)  Temperature of sugar
a. (1) and (ii)   b. (i) and  (iii)       c. (ii) and (i)    d. (iii) and  (iv)
Correct Answer a. (1) and (ii)
12.A variable that measures the effect that manipulating another variable has is known as:
a. A dependent variable                 b. A confounding variable
c. A predictor variable                     d. An independent variable
Correct Answer a. A dependent variable
13. Dependent variable is also called a..........
a experimental variable          b. responding variable
c. Joule                                   d. mass
Correct Answer  b. responding variable
14. A farmer applies different fertilizer to his cotton crops, to see which will make his plants grow the highest. What is the independent variable?
i. Different cotton crops                           b. Heights of plants
c. Type of fertilizers                               d. Growth of plants
Correct Answer c. Type of fertilizers

15. The standard unit for measuring the frequency of sound wave is
a. metre per second     b. newton     c. metre                 d. hertz
Correct Answer d. hertz
16. Which of the following has the same unit in CGS and MKS system?
a. density                    b. Distance                c. time                    d mass
Correct Answer c. time
17. In the experimental method, the variable which is under control of an experimenter is.......
a. A dependent variable           b. A confounding variable
c. A predictor variable            d. An independent variable
Correct Answer d. An independent variable
18. I will lose extra fat if I run extra hours. The two variables: amount of fat lost and hours of running. Which is the dependent variable?
a. Amount of fat lost                          b. Hours of running
c. Both A and B                                  d. None of these
Correct Answer a. Amount of fat lost
19. What is independent variable?
a.variable that is constant throughout the experiment .
b. variable that can be changed
c.variable that responds to change
d. variable that is obtained after an experiment
Correct Answer  b. variable that can be changed
20. What is dependent variable?
a.one variable that remains constant throughout the experiment
b one variable that does not remain constant throughout the experiment
c.one variable that depends upon other variable in an experiment.
d. one variable that does not have relation to other.
Correct Answer c.one variable that depends upon other variable in an experiment.
21. Which variables are called left variables?
a all variables b. controlled variables   c. independent variables
d. all dependent variables
Correct Answer d. all dependent variables
22. Why is the independent variable called the x-variable?
a its value can be changed continuously
b. its value responds to changes
c. it is placed on the y-axis in the graph
d. it is placed on the x-axis in the graph
Correct Answer d. it is placed on the x-axis in the graph
23.What are the units with independent existence called?
a physical quantity h. fundamental quantity c. fundamental unit
d. derived unit
Correct Answer c. fundamental unit
24. In the given equation s= vxt   where's' means displacement, 'v' means velocity and 't' means time which of the following options proves its validity?
a. m= m/s2         b.m=msxs     c.   m=kgxs         d. m=m/s xs
Correct Answer d. m=m/s xs
25. Arya says, "There are many variables in an experiment". Elle says, "Yes! There are multiple controlled variables in an experiment. Then Pooja replies that there is only one dependent variable and only one independent variable in an experiment.  Who is correct or incorrect?
a.Arya is correct but Elle and Pooja are incorrect.
b. Elle is correct but Arya and Pooja are incorrect.
c. Arya. Elle and Pooja are correct.
d. Pooja is correct but Arya and Elle are incorrect.
Correct Answer c. Arya. Elle and Pooja are correct.
26.Which fundamental units of following represents the proper relation for Newton?
 a kgm-2s-2          b kgm2s-1  c. kgm2s2                   d.kgms-2
Correct Answer d.kgms-2
27.  Which of the following is a derived unit?
a.Kilogram              b.Second      c. Kelvin                    d.Newton
Correct Answer d.Newton
28. Which fundamental units of following represents the proper relation for joule?
a. kgm2s-2      b. Kgm2s-1       c. kgm-2s-2                 d. kgm-2s2
Correct Answer a. kgm2s-2     
29. Which of the following is an example of a variable in scientific research?
 a. The colour of the laboratory walls.           b. The size of the experiment table.
c The time it takes for a plant to grow.     d. The number of people present in the room.
Correct Answer c The time it takes for a plant to grow.

30. In a scientific study, which type of variable is intentionally changed or manipulated by the researcher?
a Independent variable                b. Control variable        c.Dependent variable      d. Extraneous variable
Correct Answer a Independent variable 
31. What is the unit for measuring time in the International System of Units (SI)?
a. Liter              b. Second       c. Kilogram                   d. Pascal
Correct Answer b. Second
32. What is the unit for measuring temperature in the International System of Units (SI)?
a. Kelvin                    b. Celsius     c. Fahrenheit         d. Gram
Correct Answer a. Kelvin
33. Which of the following is an example of a control variable in a scenic experiment?
a The amount of water given to plants.                b. The type of fertilizer used in farming
c. The height of the experimental apparatus        d. The temperature of the laboratory room
Correct Answer d. The temperature of the laboratory room
34.The variable that we control is called...............
a. dependent variable                          b. Independent variable
c. Controlled variable                       d. Constant variable
Correct Answer c. Controlled variable
35.In the plant experiment, the growth of the plant is………………………
a. Independent variable                        b. dependent variable
c. Controlled variable                             d. both (a) and (b)
Correct Answer b. dependent variable
36. What are the three fundamental units of SI system?
(a) m, Kg and S                                 (b) m, gm and S
(c) Cm, gm and minute                       (d) Km, Kg and S
Correct Answer (a) m, Kg and S 
37. Which of the following physical quantity has its unit joule?
(a) Work   (b) Energy   (c) both (a) and (b)                  (d) Power
Correct Answer (c) both (a) and (b) 
38.Which of following physical quantity has its unit m/s ?
a)Acceleration b) Velocity   c)Force   d)Work
Correct Answer b) Velocity
39.Which of the following unit is derived unit ?
a)Newton      b)Metre    c)Second     d) kilogram
Correct Answer a)Newton
40.Which of following physical quantity has unit N ?
a)Acceleration    b)Speed   c)Force    d)Density
Correct Answer c)Force

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Unit : 2       Classification of Living Beings  ,
              Group :A Multiple Choice   
                       Questions (MCQ)    
1 Which of the following plants belongs to division Algae?(K)
a. Moss    b. Spirogyra    c. Cycas       d. Fern
Correct Answer b. Spirogyra
2.Why is Cycas kept in sub-division gymnosperms? (U)
a. It has needle-shaped leaves.
b. It has naked seeds
c. It has chlorophyll
d. It has cones instead of fruit.
Correct Answer b. It has naked seeds
3. Identify the monocot plant from the following. (K)
a. Pea   b.  Mango      c.Bamboo    d. Apple
Correct Answer  c.Bamboo
4 Identify the characteristics of the animals that belong to phylum coelenterata. (K)
a. It is unicellular     b. It is found on land.  c.It moves with the help of tentacles. d. its body has numerous pores
Correct Answer  c.It moves with the help of tentacles.
5. Why is coelenteron called gastrovascular cavity? (U)
a.It is found in hydra.
b.it works to digest and transport. c. Its shape is like that of a tube.   d. It helps to digest food
Correct Answer b. it works to digest and transport
6 .Identify the group of animals that belong to phylum platyhelminths. (HA)
a. Hydra, Jelly fish, Pinworm, Liver fluke    b. Tapeworm, Liverfluke, Diplozoon, Atoplana
c. Spongilla, Hydra, Tapeworm, Jellyfish   d. Tapeworm, Liver fluke, Diplozoon, Hydra
Correct Answer b. Tapeworm, Liverfluke, Diplozoon, Atoplana
7. Identify the earthworm on the basis of the characteristics given below. (HA)
a. Moist skin, hermaphrodite, nervous system with a nerve ring   
b. Moist skin, unisexual, nervous system with a nerve ring.
c. Flat body, hermaphrodite, nephridia for excretion, breathes through body surface.
d.  Cylindrical body, unisexsal, reproduces through regeneration, having nerve ring
Correct Answer a. Moist skin, hermaphrodite, nervous system with a nerve ring 
8.Which of the given animals belongs to phylum Mollusca? (K)
a. Cuttlefish   b. Butterfly  c. Jelly fish   d. Star fish  
Correct Answer a. Cuttlefish
9. What is the function of gils in fish? (A)
a. Helps to swim   b. Helps to breathe  c. Helps to digest food d. Helps to change direction in water
Correct Answer b. Helps to breathe
10. What is the main reason of keeping bat in class Mammalia? (U)
a. Its body has vertebral column. b. Its body has mammary glands.
c. It breathes through the lungs.  d. It gives birth to young ones and suckles them.
Correct Answer d. It gives birth to young ones and suckles them.
11. Which of the following groups of plants belongs to sub-division Angiosperms? (HA)
a. Fern, Cycas, Pea. Onion      b. Pine, Mango, Orange, Maize     c. Garlic, Bamboo, Simal, Apple   d. Dhupi, Garlic, Rose, Sal
Correct Answer c. Garlic, Bamboo, Simal, Apple
12 . Why is pine kept in sub-division gymnosperms? (HA)
a. It has cones and seeds inside fruit.
b. It has needle-shaped leaves and produces flowers.
13. it produces flowers and fruits. and naked seeds.
d .It has cones instead of flowers .
Correct Answer d .It has cones instead of flowers .
14. Why is slug kept in Mollusca phylum?
a. Body is divided into head, visceral mass, muscular foot and mantle.
b. Locomotion shows with the help of tube feet
 c. Body is divided into head thorax and abdomen.
d. They are found in moist soil and water
Correct Answer a. Body is divided into head, visceral mass, muscular foot and mantle.
15. Hari saw two invertebrates P and Q in a pond. He found that P is the first multicellular animal and Q is the first tissue graded animal. By studying these characteristics of the animals which of the following statement match? (HA)
a.Organism P is diploblastic whereas organism Q is triploblastic.
b. Body of P bears pores whereas body of Q bears coelenteron.
C. The body of both P and Q are not diploblastic.
d. The body of both P and Q has tentacles.
Correct Answer b. Body of P bears pores whereas body of Q bears coelenteron.
16. Why are Riccia and Horse tail both found in moist and shady places? (U)
a. Do not need sunlight for photosynthesis       b. Survive only at low temperature.
c. Depend on microorganisms for nutrition.    d. Requires water for fertilization.
Correct Answer d. Requires water for fertilization.
17. Who introduced a five-kingdom system of classification?
a. Robert Hooke    b. Carlous Von Linnaeus   b.        c. Robert H. Whittaker   d. Aristotle
Correct Answer c. Robert H. Whittaker
18. Which kingdom includes unicellular prokaryotes? a. Monera   b Protista c. Fungi    d. Animalia
  Correct Answer a. Monera
19. Which kingdom includes unicellular eukaryotes?
a. Monera   b. Protista c. Fungi    d Animalia 
Correct Answer b. Protista
20. Euglena is a unicellular organism with chlorophyll. Which kingdom should it belong to?
a. Monera    b. Protista.     c. Fungi     d.Animalia
Correct Answer b. Protista
21. What is the cell wall of plant cells made of?
a. glycol protein     b. Lipid       c. chitin     d. cellulose
Correct Answer d. cellulose
22. Plants are autotrophs. What does it mean?
a. they can decompose dead parts into minerals
b. they can synthesize their own food.
c. they absorb nutrition from decaying organic matter
d.they can eat plants.
Correct Answer b. they can synthesize their own food.
23. Algae are thallus. What does it mean?
a. it has a root, stem and leaf
b. it has rhizoids, rhizomes and fronds
c. it has a rhizome and a leaf
d. it has no differentiable root, stem and leaf
Correct Answer d. it has no differentiable root, stem and leaf
24. Which set of organisms belong to the phylum Platyhelminthes?
a .liver fluke, otoplana, diplozoon           b. leech, Nereis, earthworm
c. cuttlefish, slugs, snails     d. ascaris, pinworm, hookworm
Correct Answer a .liver fluke, otoplana, diplozoon
25. What helps Annelida to excrete?
a. nephridia   b. book lung c. osculum d. hypostome
Correct Answer a.nephridia
26. Which class does the sea horse belong to?
a.Pisces b. Amphibia C. Reptilia d. Aves
Correct Answer a.Pisces
27. In which phylum frog belongs to?
a. Amphibian b. Chordata c. Hemichordata d. Aquatic organism
Correct Answer b. Chordata
28. Why do parrots belong to the Aves class?
a. oviparous, pneumatic bones, feather     b. oviparous, aquatic, streamlined body
C. wings, viviparous, aerial  d. oviparous, wings, two-chambered heart
Correct Answer a. oviparous, pneumatic bones, feather
29. Based on evolution which class is the least advanced in subphylum Vertebrata?
a. Pisces b. Amphibia c. Reptilia          d. Aves
Correct Answer a. Pisces
30. Amphibians have a three-chambered heart and the Aves have a four-chambered heart. What does it suggest?
a. Amphibians are more advanced than Aves.  b. Aves are more advanced than amphibians.
c. Amphibians have a smaller heart than Aves.  d. Aves have smaller hearts than amphibians.
Correct Answer b. Aves are more advanced than amphibians.
31. Which set of features describes Gymnosperms better?
a. Cones, naked seeds without fruit, single fertilization
b. Bears flowers, and leaves are needle-like, double fertilization
c. Bears flowers, produce seed, pointy leaf, single fertilization
d. Bears cones instead of flowers, seeds are enclosed in fruit, double fertilization
Correct Answer a. Cones, naked seeds without fruit, single fertilization
32. Which set of phyla are closely related based on evolution?
a. Porifera, Annelida, Echinodermata     b. Porifera, Mollusca, Chordati
c. Coelenterata, Arthropoda, Chordata    d. Platyhelminthes, Nemathelminthes, Annelida
Correct Answer d. Platyhelminthes, Nemathelminthes, Annelida
33. Which class does the animal with the following feature belong to?
Feature: egg-laying animals with a four-chambered heart and body covered with feathers
a. Monocotyledon    b. Reptilia     c. Aves     d. Pisces
Correct Answer c. Aves
34. Which set of plants belong to angiosperm?
a. pinus, fern, pea   b. pinus, maize, gram  c. moss, maize, Marchantia     d. wheat, banyan, apple
Correct Answer d. wheat, banyan, apple
35. Which division do the plants having vascular tissue belong to?
a. Sporophyta b. Gametophyta     c. Tracheophyta d. Spermatophyta
Correct Answer c. Tracheophyta
36. Shefali observed two plants, she found that both plants needed water for fertilization and both were non-flowering. She also found that plant A is non-vascular but plant B is vascular. Based on the observation. Which statement is true?
a. Plant A has a shorter gametophyte whereas plant B has longer gametophyte.
b. Plant A is is fern and plant B is moss.
c. Plant A can be tall whereas plant B is short.
d. Plant A has a shorter sporophyte whereas plant B has longer sporophyte.
Correct Answer d. Plant A has a shorter sporophyte whereas plant B has longer sporophyte.
37.Which of the following plants belongs to the division Bryophyte?
a. Spirogyra     b.Moss      c. Cycas   d. Fern
Correct Answer b.Moss
38.A Sunflower is kept in the division Angiosperms, because
a. It has cones instead of flowers    b. It has flowers instead of cones
c.It has two cotyledons in its seed    d. It does not bear flowers
Correct Answer c.It has two cotyledons in its seed
39.An aquatic vertebrate has gills for breathing and fins for swimming, it belongs to phylum...
a.Vertebrata    b.Chordata c.. Mammalia   d. Pisces
Correct Answer b.Chordata
40.Which one of the given animals cannot withstand extremely high and low temperature?
a.Crow   b.Penguin c. Frog d. Elephant
Correct Answer c. Frog
41.Which of the given chordata is not a vertebrate?
a. Snake    b. Herdmania    c. Frog     d. Dolphin
Correct Answer b. Herdmania (Sub-phylum Urochordata)
42.Which of the given animal belongs to the class Mammalia?
a.Streamlined body, oviparous and gills are present.
b.Mammary glands present, viviparous, pinnae present.
c. Mammary glands absent, lungs present, oviparous
d. Viviparous and gills are present, two-chambered heart
Correct Answer b.Mammary glands present, viviparous, pinnae present.
43. Which of the following plant do not contain vascular tissue?
a. Siprogyra   b.Fern c. Paddy d. Mustard
Correct Answer a. Spirogyra
44. Which of the following invertebrates have cylindrical, segmented and triploblastic body?
a. Platyhelminthes  b. Annelida c. Arthropoda d. Nematoda
Correct Answer b. Annelida
45. Which phylum includes multicellular, pores in the skin and sessile character?
a. Mollusca b. Ceolenterata c. Porifera d. Protozoa
Correct Answer c. Porifera
46. In which class do bat belong to?
a. Amphibia b. Aves   c. Mammelia d. Pisces
Correct Answer c. Mammelia
47.Which of the following is an example of age?
a.Chlamy47.Which of the following is an example of age?
a.Chlamydomones b.Moss c.Liverworte d. Rhizopus
domones b.Moss c.Liverworte d. Rhizopus
Correct Answer a.Chlamydomones
48. Villagers of a village are being troubled by rats and they conducted a campaign to kill them.What could be the consequence of it ?
a.Ecoxystem will be balanced                    c.Number of snakes will be increased
b. Number of snakes will be decreased    d. Number of insects will be increased.
Correct Answer c. Number of snakes will be increased
49. in which class does a pigeon lie?
a.Pisces        b.Mammalis           c. Aves      d. Reptiles
Correct Answer c. Aves

50. The classification process of organisms is mainly based on their......
a Physical appearance      b Geographical location      c.Breeding methods     d History of evolution
Correct Answer d History of evolution
51. Which of the following is a characteristic of the kingdom Plantae?
a. Heterotrophic      b Lack of cell wall     c.Photosynthetic autotrophic nutrition  d. Lack of chlorophyll
Correct Answer c.Photosynthetic autotrophic nutrition
52. What is the characteristic of the kingdom Animalia?
a. Cell walls made of chitin       b Autotrophic        c.Eukaryotic cells     d. Lack of specialized tissues
Correct Answer c.Eukaryotic cells
53. Which are the kingdoms of organisms that have cell walls in a cell?
a Monera, Fungi Animalia                  b. Fungi, Plantae, Protista    
c. Fungi, Plantae, Animalia                d Fungi, Plantae, Monera
Correct Answer b. Fungi, Plantae, Protista
54. Which division of the kingdom Plantae includes moss and riccia?
a Bryophyta   b Angiosperms    C Gymnosperms d. Pteridophyta
Correct Answer a Bryophyta
55. Which division of the plants does not contain fruits?
a. Algae       b Bryophytes        C Angiosperm          d Gymnosperms  
Correct Answer d Gymnosperms         
55. Why is Cycas placed in gymnosperms?
a.It has cones instead of flowers, and seeds inside the fruit.
b .Its flowers bloom and produce seeds.
C. It has cones instead of flowers, and seeds without fruit.
d Its flowers bloom, and its leaves are sharp.
Correct Answer C. It has cones instead of flowers, and seeds without fruit
56. Which of the following groups come under angiosperms?
a Paddy, banana, mango        b. Maize, pine, beans        c.Banana, onion, pine      d. Gram, maize, dhupi
Correct Answer a Paddy, banana, mango
57. Which of the following is an example of an angiosperm?
a Pine           b Fern         c.Bamboo  d. Moss
Correct Answer c.Bamboo
58. The sub-phylum vertebrata is characterized by the presence of....
a exoskeleton     b. vertebral column       C jointed legs       d gills for respiration
Correct Answer b. vertebral column
59. Which of the following animals belongs to the subphylum Vertebrata?
a. Octopus        b Snail         C. Bird         d. Sponge
Correct Answer C. Bird
60. In which group do animals with four lobes in the heart, body covered with feathers and wings and oviparous animals belong?
a. Reptile          b. Mammal         C. Bird        d. Amphibian
Correct Answer C. Bird
61. What is the main reason to classify whales as mammals?
a. Breath through the lungs                b. The body has a backbone
C. It is viviparous                                  d. Give birth and suckle milk
Correct Answer d. Give birth and suckle milk
62. How does the classification of living beings help in understanding evolution?
a It provides information about the geological age of fossils.
b. It helps in identifying common ancestry and evolutionary relationships.
C. It determines the number of species in a particular ecosystem.
d It predicts the future evolutionary changes in organisms.
Correct Answer b. It helps in identifying common ancestry and evolutionary relationships.
63. Why is pines kept in sub-division gymnosperm?
a It has needle shaped leaves.            b. It has naked seeds. 
C. It has chlorophyll.                             d. It has cones instead of fruit.
Correct Answer b. It has naked seeds. 
64. Which of the following groups of organism are closely related on the basis of evolution?
a. Porifera, Annelida, Chordata                           b. Porifera, Arthropoda, Chordata
c.Coelenterata, Arthropoda, Chordata                  d. Platyhelminthes, Nemathelminthes, Annelida
Correct Answer d. Platyhelminthes, Nemathelminthes, Annelida
65. Why are mosses and ferns both found in moist and shady places?
a .Do not need sunlight for photosynthesis.             b. Survive only at low temperature.
Depend on microorganisms for nutrition.                d. Requires water for fertilization.
Correct Answer d. Requires water for fertilization.
66. When Samira observed specimen in the laboratory, she found that both the organisms were long and cylindrical, She also found that organism A has cylindrical segmented body and organism B has not segmented body. By studying the above characteristics which statement is true for these organisms?
a. Organism A is diploblastic whereas organism B is triploblastic
b. Organism A is triploblastic whereas organism B is diploblastic.
c.Organism A has well developed circulatory system whereas organism B has no circulatory system
d.Organism A has no circulatory system whereas & has well developed circulatory system.
Correct Answer c.Organism A has well developed circulatory system whereas organism B has no circulatory system
67. Why is snail kept in Mollusca phylum?
a.Body is divided into head, visceral mass, muscular foot and mantle
b.Locomotion shows with the help of tube feet  
c.Body is divided into head thorax and abdomen.
d .They are found in moist soil and water.
Correct Answer a.Body is divided into head, visceral mass, muscular foot and mantle
68. Shyam saw two invertebrates P and Q in a pond. He found that P is the first multicellular animal and Q is the first tissue graded animal. By studying these characteristics of the animals which of the following statement match?
a. Organism P is diploblastic whereas organism Q is triploblastic
b Body of P bears pores whereas body of Q bears coelenteron
C The body of both P and Q are not diploblastic.
d. The body of both P and Q has tentacles.
Correct Answer b Body of P bears pores whereas body of Q bears coelenteron
69. To which class do egg-laying animals with a four chambered heart belong?
a Mammalia        b. Reptilia       C Aves        d. Amphibia
Correct Answer C. Aves
28. Why is coelenteron called gastrovascular cavity?
a It is found in hydra           b. It works to digest and transport.  
c.Its shape is like that of a tube.             d. It helps to digest food.
Correct Answer b. It works to digest and transport.
70. When Hari observed specimen in the biology laboratory, he found that both are worms. He found that organism A has flat and segmented body and organism B has cylindrical and long.
a.Organism A is hermaphrodite and organism B is bisexual
b. Organism b is unisexual and organism A is hermaphrodite.
C. Organism A is diploblastic and organism is triploblastic
d. Organism A is triploblastic and organism B is diploblastic
Correct Answer b. Organism b is unisexual and organism A is hermaphrodite.
71. Sarita found a plant in her surroundings and claimed that plant is a dicot. If her conclusion is right, which of the following statement is true?
a. Leaves contain reticulate venation and roots persist as taproot.
b Leaves contain parallel venation and roots are fibrous.
C Leaves contain reticulate venation and roots are tufted.
d Leaves contain parallel venation and roots persist as taproot.
Correct Answer a. Leaves contain reticulate venation and roots persist as taproot.
72. Which division do the plants having vascular tissue belong to?
a. Sporophyte      b Gametophyte      C. Tracheophyte      d Spermatophyta
Correct Answer C. Tracheophyte
73. In a school, teacher gave a project work to the students to collect bryophyte and study their characteristics. One of the students gave the following characteristics. Which one is the correct characteristics of the bryophyte?
a. They are unicellular.
b Their body can be differentiated into rhizoid, stem and simple leaf.
C.They have developed vascular tissue like xylem and phloem.
d They bear cones instead of flowers
Correct Answer b Their body can be differentiated into rhizoid, stem and simple leaf.
74. Chlorophyll is absent in
a. Spirogyra b. mushroom c. moss d. fern
Correct Answer b. mushroom
75. Which of the following plant belongs to sub-division gymnosperms?
a.cycas        b. rose       c. lycopodium          d. mustard
Correct Answer a.cycas
76. The animals having numerous pores in their bodies are kept in phylum.
A. chordata      b. arthropoda     c. porifera      d. coelenterate
Correct Answer c. porifera
77. Which of the following animals belongs to class reptilian?
a. aquatic, oviparous          b. creeping animal, oviparous     
c. terrestrial, oviparous     d. creeping animal, viviparous
Correct Answer b. creeping animal, oviparous 
78. Which of the given vertebrate belong to class mammalia.
a. aquatic, oviparous, warm-blooded             b. terrestrial, viviparous, cold-blooded
c. aerial, viviparous, warm-blooded                 d. terrestrial, creeper, cold-blooded
Correct Answer c. aerial, viviparous, warm-blooded
79. Mustard plant is called a dicot plant, because..
a. it is a flowering plant                           b. its seed has two cotyledons
c. it has root, stem and leaves                d. it has tap root system
Correct Answer b. its seed has two cotyledons
80. Cone bearing plants fall in sub-division
A. Pteridophyta            b. Gymnosperm         c. Angiosperm        d.Both (a) and (b)
Correct Answer b. Gymnosperm
81. Reticulate venation with a tap root system is characteristics features of...
a. Monocot plant         b. Dicot plant        c. Cryptogams        d. None of these
Correct Answer b. Dicot plant
82. What is the study of fungi called?
a. Mycology        b. Phycology        c.Virology       d. Meteorology
Correct Answer a. Mycology
83. Which of the following is the first unicellular eukaryotes?
a. Protista          b. Monera         c.Plantae        d. Animalia
Correct Answer b. Monera
84. Diploblastic means
a. Having three-layers of skin                      b. Having two layers of skin
e. Having one layer of skin                           d. None of these
Correct Answer b. Having two layers of skin
85. Which of the following is not the division of kingdom plantae?
a. Fungi           B. Algae                  c. Bryophyta        d. Tracheophyta
Correct Answer a. Fungi 
86. bear naked seeds.
a. Algae                  b. Bryophyta              c. Gymnosperms           d. Angiosperms
Correct Answer c. Gymnosperms          
87. has parallel venation in their leaves.
a. Mango                b. Pea                   c. Sugar cane               d. Mustard
Correct Answer c. Sugar cane
88. Flatworms are also known as...
a. Coelenteron              b. Platyhelminthes             c. Nemathelminthes                  d. Annelida
Correct Answer b. Platyhelminthes
89. Which of the following is not mammal.?
a. Bat                   b. Horse               c. Sea horse             d. Dolphin
Correct Answer c. Sea horse
90. What is the number of chambers in the heart of a crocodile.
a.2                 b. 4                 c.3                            d .5
Correct Answer b. 4
91. Which of the following is first unicellular eukaryotes?
. a. Protists                 b. Monera           c.Plantae               d. Animalia
Correct Answer. a. Protists
92. Animals of which phylum are also called spiny skinned animals?
a. Platyhelminthes               b. Arthropoda            c. Mollusca            d. Echinodermata
Correct Answer d. Echinodermata
93. The number of chambers in the heart of a fish is ...
. a.1             b. 2                   c.3                d. 4
Correct Answer b. 2  
94. In which of the organisms does external fertilization take place?
a. Elephant                  b. Hen                  c. Frog                 d. Annelida
Correct Answer c. Frog
95. Which of the following has three chambered heart?
a. rabbit                    b. Hen                 c. Frog               d. Human
Correct Answer c. Frog
96. What is the distinguishing feature of a tracheophyte?
a. thallus body       b. rhizoids and rhizomes       c. root, stem and leaf     d. xylem and phloem
Correct Answer d. xylem and phloem
97. Which set of kingdoms has a cell wall?
a. Monera, Protista, Fungi      b. Monera, Fungi, plantae      
c. Protista, Fungi, Plantae     d. Fungi, Plantae, Animalia
Correct Answer b. Monera, Fungi, plantae  
98. Which of the following statements is true for a gymnosperm?
a. Gymnosperms are herbs, shrubs and trees.                 b. Gymnosperm are Mesophytes.
C. Gymnosperms are pollinated by air.                              d. Gymnosperm have true flowers.
Correct Answer C. Gymnosperms are pollinated by air.
99. What is the class of plants with one cotyledon in the seed?
a. monocotyledon.     b Dicotyledon    c. Pisces         d. gymnosperms
Correct Answer a. monocotyledon
100. What is a single large opening at the end of the coelenteron of Hydra called?
a. osculum b. Tentacles   C. nematocytesd.      d.hypostome
Correct Answer d.hypostome
101. Which phylum includes cuttlefish, slugs, snails and unio?
a.  Pisces      b. Chordata   C. Mollusca     d. Echinodermata
Correct Answer C. Mollusca
102. Which of the following sets is Nemathelminthes?
a. lycopodium, horsetail, walking fern       b. earthworm, leech, Nereis
C. sea urchin, starfish, brittle star              d. ascaris, pinworm, hookworm
Correct Answer d. ascaris, pinworm, hookworm
103. Fishes lay unfertilized eggs in water but they hatch into fries. How is it possible?
a. parthenogenesis      b. fish egg does not need to be fertilized
C. fertilization occurs in water     d. water and egg mix to form fries.
Correct Answer C. fertilization occurs in water
104. Which class of organisms have a two-chambered heart?
a. Pisces    b. Amphibia      c. Aves      d. Mammalia
Correct Answer a. Pisces      
105. What is notochord?
a. vertebral column at the back of the body    
b. backbone at the dorsal part of an organism
c.spinal cord inside the vertebral column
d. tube made of cartilage found between the digestive tube and the nerve cord
Correct Answer d. tube made of cartilage found between the digestive tube and the nerve cord
105. Which phylum contains the organisms whose skeletons are inside rather than outside?
a. Mollusca              b. Coelenterata         c. Echinodermata        d. Vertebrata
Correct Answer d. Vertebrata
106. Which of the following is a unicellular and either heterotrophic or autotrophic organism with a cell wall?
a. amoeba         b. paramecium        c. bacteria       d. moss
Correct Answer c. bacteria
107. Which of the following is a unicellular and heterotrophic organism without a cell wall?
a. amoeba                        b. Lion                    c. mushroom       d. euglena
Correct Answer a. amoeba
108. Which of the following kingdoms contains a multicellular and heterotrophic organism without a cellwall?
a. Monera                 b. Fungi             C. Protista                d. Animalia
Correct Answer d. Animalia
109. Which of the following is a multicellular and autotrophic organism with a cell wall?
a. Plantae                b. Fungi         c. Protista         d. Animalia
Correct Answer a. Plantae
110. Which of the following is a multicellular and heterotrophic organism with a cell wall?
a. Plantae                b. Fungi         c. Protista         d. Animalia
Correct Answer b. Fungi
111. Which phylum of animal is the first tissue-graded animal?
a. Porifera     b. Coelenterata   c. Platyhelminthes d. Nemathelminthes
Correct Answer b. Coelenterata
112. A salamander appears like a reptile but is an amphibian. Why?
a. it lives on land and water                      b. it lays lots of eggs at a time. 
C. it needs water for fertilization               d. it has a head, neck, trunk and tail.
Correct Answer C. it needs water for fertilization
113. Why is a shark classified as Pisces?
a. oviparous, two-chambered heart, aquatic          b. oviparous, three-chambered heart, semi-aquati
c. viviparous, three-chambered heart, breathe by lungs     d. carnivorous, notochord, backbone is present, aquatic
Correct Answer a. oviparous, two-chambered heart, aquatic 
114. Which of the following aquatic animal has internal fertilization?
a. whale         b. trout       c. shark       d. sea horse
Correct Answer c. shark
115.Which of the following is single celled prokaryotes?
a. Amoeba         b. Cynobacteria        c. Yeast         d. Euglena
Correct Answer b. Cynobacteria

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.Unit 3:  Honey Bee
     Group-   A:      Multiple Choice Questions
    
1.  Which phylum does honey bee lie? (K)
a. Annelida         b. Arthropoda          c. Chordata          d. Mollusca
Correct Answer: b. Arthropoda
2.What is called the science that deals with the study of honey bees? (K)
a. Biology               b. Apicology         c. Melittology         d. Apiculture
Correct Answer: b. Apicology
3 Why is honey bee kept in phylum arthropoda? (U)
a. It lays eggs.                                b.  It produces honey.
c. Jointed legs are found in its body.      d. It is a social insect.
Correct Answer: c. Jointed legs are found in its body.
4 . What is the function of the antenna found in the head of honey bee? (A)
a. To make honey       b. To know about the change in environment
c. To collect pollens                     d. To search food
Correct Answer: b. To know about the change in environment
5. Identify the queen bee on the basis of the characteristics given. (HA)
a. Small and round head, largest and elongated body     b. Medium-sized body, black and hairy
c. Smallest body, chewing and lapping mouth          d. Having pollen basket in legs, no poison glands
Correct Answer: a. Small and round head, largest and elongated body 
6. What is shown in the given figure? (K)


a. Drone bee  b. Worker bee  c. Larva of honey bee    d. Queen bee
Correct Answer: d. Queen bee
7. What is the major function of queen bee? (A)
a. To lay eggs    b. To control hive  c. To fight with enemy           d. To produce honey
Correct Answer: a. To lay eggs    b. To control hive
8.  Which stage of the life cycle of honey bee is shown in the given  figure? (K)

a. Egg         b. Larva          c.   Pupa           d. Adult

Correct Answer: b. Larva
9. Identify drone bee on the basis of the given features. (HA)
a. Fertile, hairy, medium-sized, haploid
b. Sterile, hairy, medium-sized, diploid
c. Sterile, smooth, smallest, diploid
d. Fertile, hairy, largest, haploid
Correct Answer: a. Fertile, hairy, medium-sized, haploid
10. What is the number of worker bees in a hive? (K)
a. 10,000 to 20,000   b.30,000 to 50,000     c. 20,000 to 80,000   d. 50,000 to 80,000
Correct Answer: c. 20,000 to 80,000
11. In which of the following conditions is a queen bee developed? (U)
a. Take royal jelly for the first 3 days
b. Take royal jelly throughout the larval period
c. Take royal jelly for the first 4 days
d. Take royal jelly throughout the pupal period
Correct Answer: b. Take royal jelly throughout the larval period
12.Which of the following part of the body of honey bee contain pollen basket?
a. Head       b. Thorax         c. Abdomen      d. Leg
Correct Answer: d. Legs
13 . Which of the following is the characteristic of the drone bee?
a. Haploid, fertile, medium sized, hairy
c. Diploid, sterile, medium sized, hairy
b. Diploid, sterile, medium sized, smooth
d. Diploid, fertile, medium sized, hairy
Correct Answer: a. Haploid, fertile, medium sized, hairy
14 . From where is royal jelly produce?
a. From the gland at the head of queen bee
b. From the salivary gland of worker
c. From the gland at the head of worker bee
d. From the gland at the head of drone
Correct Answer: c. From the gland at the head of worker bee
15 . Which one of following honey bee survive for longer duration?
a. Worker    b. Queen     c. drone     d. Worker and drone
Correct Answer: b. Queen
16 . Which of the insect called social insect?
 a. Fly  b. Mosquito c. Honey bee    d. cockroach
Correct Answer: c. Honey bee
17. What is the duration of egg of honey bee?
a. 6 days     b. 3 days    c. 12 days   d. 21 days
Correct Answer: b. 3 days
18 . The drones in the colony of honey bees are........
a. sterile female     b. fertile female      c. sterile female   d. fertile male
Correct Answer: d. fertile male
19 . A queen honey bee lives for
a. about 1-2 years   b.  about 6 weeks    c. about 24 weeks   d. about 5 years
Correct Answer: a. about 1-2 years
20 . Honey bees are important for
. a. honey     b. Wax    c. pollination    d. all of them
Correct Answer: d. all of them
 21 . How much honey can a single bee make in the life span?
a. about 1-12 teaspoon b. 1 teaspoon  c. 1-2 teaspoon   d. 1-4 teaspoon
Correct Answer: a. about 1-12 teaspoon
22 . A honey bee helps in......Pollination .
a. Cross     b. Self      C. Both    d. None of them
Correct Answer: C. Both
23 . Which is the biggest a honey bee?
a. Queen     b. Drone    C. Worker   d. None of them
Correct Answer: a. Queen
24 . What is produced by a honey bee to provide nutrition to the larva?
a. honey     b. Wax    c. Royal Jelly    d. all of them
Correct Answer: c. Royal Jell
25 . Which honeybee feeds on royal jelly only?
a. Queen     b. Drone    C. worker   d. all of them
Correct Answer: a. Queen
26. ...........Of honey bee help in detecting sound,smell, and tastes.
a. proboscis     b. Antennae     c. compound eyes     d. wings
Correct Answer: b. Antennae
27. .......... is the fertile female in the colony of honey bees
a. Drone bee     b. Workers bee      c. Queen bee      d. Wasp
Correct Answer: Queen bee
28 .Worker bee....
a. diploid, sterile female             b. haploid, sterile male
c. diploid, fertile female.             d. haploid, fertile male
Correct Answer: a. diploid, sterile female
29 . In the life cycle of honey bee..... is voracious feeder in nature.
a. egg         b. larva        c. pupa       d. adult
Correct Answer: b. larva
30 . Whom is the royal jelly especially feed to ?
a. drone bees      b.Worker bee     c. Queen bees   d. All the bee of colony
Correct Answer: c. Queen bees
31 . Which of the following is not related to honey bee
 a. Bee bread   b. wax     c. silk     d. Royal jelly
Correct Answer: c. silk
 32. How many morphologically different bee live in hive?
a. 2        b. 1           c. 3      d. 4
Correct Answer: c.   3 
33 . How many chromosome are present in the drone bee?
a. 16 chromosomes    b. 16 pair chromosome   c. 32 chromosomes    d. 8 pairs
Correct Answer: a. 16 chromosomes
34 . In which stage does a honey bee produce honey?
a. Pupa       b. adult      c. egg     d. larva
Correct Answer: b. adult
35 . Which of the following is the work of drones' bee?
a. To keep the hive warm      b. To fertilize the queen bee     c. both a. and b.    d. none of above
Correct Answer:   c. both a. and b.
36 . In which parts of the body of honey bee wax gland and sting present?
a. Head    b. Thorax     c. Abdomen   d. All of the above
Correct Answer: c. Abdomen
37. In which  class of Animalia Kingdom the honeybee lies:
a. Insecta      b. reptilia    c. aves       d. None of above
Correct Answer: a. Insecta
38 . Which bee contains only 16 chromosomes?
a. Worker bee     b. Queen bee     c. Drone bee     d. Queen and Worker bee
Correct Answer: d. Queen and Worker bee
39 . Where does the queen bee store the sperms received from the drone bee after the nuptial flight
a.  Ovary       b. Pollen sac    c. Sperm sac   d. Egg sac
Correct Answer: c. Sperm sac
40. Which of the following pairs is correct?
Age of worker bee                    Functions
P 1-3 days                                  1. Production of royal jelly
Q. 4-6 days                                  2. Cleaning of hive
R. 7-11 days                               3. Development of wax gland
S. 12-17 days                             4. Feeding of honey and honey bread to larva
a. P-2. Q-3. R-4, S-1                b P-2, Q-4, R-3, S-1
C.P-2. 0-3. R-1, S-4                   d. P-2, Q-4, R-1, S-3
Correct Answer: d. P-2, Q-4, R-1, S-3
41 . The three main body parts of a honey bee includes:
a. Head, thorax, and abdomen                           b. Wings, legs, and antennae
c. Stinger, compound eyes, and spiracles       d. All of the above
Correct Answer: a Head, thorax, and abdomen
42 . Which caste in a honey bee colony is responsible for collecting nectar and pollen?
a. Queen bee     b. Drone bee    c. Worker bee    d. Soldier bee
Correct Answer: c. Worker bee
43 . Which caste in a honey bee colony has the shortest life span?
a.  Queen bee  b. Drone bee  C. Worker bee  d. Soldier bee
Correct Answer: b. Drone bee
44 . Which caste in a honey bee colony is responsible for   mating with the queen?
a. Queen bee   b. Drone bee   c. Worker bee    d. Soldier bee
Correct Answer: b. Drone bee
45 . The order of the honey bee life cycle stages is:
a. Egg, larva, pupa, and adult    b. Larva, egg, adult, and pupa
C. Adult, egg, pupa, and larva    d. Pupa, egg, larva, and adult
Correct Answer: a. Egg, larva, pupa, and adult
46 . The importance of honey bees includes.....
a. Pollination of plants      b. Production of honey and wax
c. Maintenance of biodiversity   d. All of the above
Correct Answer: d. All of the above
47 . How many types of honey bee are there on the basis of work division?
a.   2      b.   3        c.   4     d.     5
Correct Answer: b.   3 
48 . How many chromosome are present in eggs of honey bee if egg are not fertilized?
a. 8            b. 16       c. 30        d. 40
Correct Answer: b. 16   
49 . How many eyes does a bee have?
a. 6         b. 5         c. 8         d. 12
Correct Answer: b. 5  
50 . How many days the worker bee start to make wax and hive?
a.3-6 days       b. 8-16 days       c. 12-18 days       d. 20-24 days
Correct Answer: c. 12-18 days
51 .Which of the following honey bees has a diploid number of chromosomes?
a. drone bee     b. worker bee     c . queen bee      d. Queen bee and worker bee
Correct Answer: d. Queen bee and worker bee
52.It takes .......days to form queen bee from the egg stage.
a.16      b. 21       c. 23.5         d.18
Correct Answer: a.16
53. Which of the following are the features of queen bee?
a. haploid, fertile, feeds royal jelly       b.. diploid, fertile, controller of hive
c.  diploid, sterile, feeds royal jelly        d. haploid, male, sterile
Correct Answer: b.. diploid, fertile, controller of hive
54 . Why is the honey bee called a social insect?
a. it produces honey          b. it helps in pollination in plants.    
C. it lives in a colony          d. it is a domesticated insect.
Correct Answer: C. it lives in a colony 
55 . How is a drone bee born?
a. from parthenogenesis        b. from fertilization       c. from sporulation      d. from metamorphosis
Correct Answer: a. from parthenogenesis
56. Why cannot drone bees eat the nectar of flowers?
a. they do not have pollen basket     b. they have under developed proboscis
c. they cannot smell flower               d. they cannot chew pollen grain
Correct Answer: b. they have under developed proboscis
57. Which are the features of the worker bee?
a. smallest, fertile, haploid                b. infertile, largest, diploid
c. infertile, smallest, diploid             d. fertile, diploid, medium
Correct Answer: b. infertile, largest, diploid
58.The life cycle of a bee has complete metamorphosis. What does it mean?
a. histogenesis occurs in pupa stage                   b. metamorphosis takes place in every pupa
c. life cycle of bee has four clear stages             d. life cycle of bee completes in four months
Correct Answer: c. life cycle of bee has four clear stages
59.What is the function of a worker bee aged 5 days?
a. clean hives       b. collect nectar       c. produce royal jelly          d. nurse the larva
Correct Answer: d. nurse the larva
60 . Which bees of the hive are fertile?
a. all honey bees  b. queen and worker bee   C. drone and worker bee  d. drone and queen bee
Correct Answer: d. drone and queen bee
61. How long it takes for an unfertilized egg to change into a drone?
a. 24 days  b. 16 days   C. 2 years  d. 21 days  
Correct Answer: a. 24 days
62 . How long
worker bee lives?  
a. 6 weeks to 6 months b. 2 years to 5 years   C. about 2 months  d. 2 months
Correct Answer: b. 2 years to 5 years
 63 . Why do drones die after mating?
a. tearing of tissue of abdomen     b. could not eat nectar of flower
 C. exiled from hive                         d. bitten to death by queen bee
Correct Answer: a. tearing of tissue of abdomen

64 . How is a female larva changed into a queen bee?
a. feed royal jelly
to it for 3 days       b. feed beebread to
it for 3 days
C. feed nectar to it forever    d. feed royal jelly to it for ever
Correct Answer: d. feed royal jelly to it for ever

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Unit -4 Heredity   
         Group- A (Multiple Choice Questions)
                                A.Chromosome
1. What are the two main parts of the chromosomes?
a. chromatid   and centromere         b. chromatin fibre and nucleolus 
c. nucleolus and genes                   d. p  arm and    q   arm 
Correct answer: a. chromatid   and centromere
2. What are genes made off?
a. RNA                                                       b. protein and genes  
c. histone and chromosome                        d. DNA sequence
Correct answer: d. DNA sequence
2 What is a nucleotide?
a. nucleosides linked to phosphate          b. nucleoside  
c.  DNA                                                  d. nucleic acid
Correct answer: a. nucleosides linked to phosphate
3. What set of chemicals makes  an RNA?
a. protein and ribosomes                            b. gene and protein
c. nitrogen base, ribose sugar and phosphate
d.  nitrogen base, deoxy sugar and phosphate
Correct answer: c. nitrogen base, ribose sugar and phosphate
4. How many somatic chromosomes (autosomes) are found in human cells?
 a. 23 pairs        b. 46 pairs       c. 22 pairs     d. 44 pairs
Correct answer: c. 22 pairs
5. Where is DNA found in the Virus?
a. nucleus     b. Nucleoplasm       c. cytoplasm      d. Inside capsid
Correct answer: d. Inside capsid
6. What set of chemicals makes DNA?
a. nitrogen base, deoxyribose sugar and phosphate ion  
b. protein and ribosomes                      
c. gene and protein               d. nitrogen base, sugar and phosphate
Correct answer:  a. nitrogen base, deoxyribose sugar and phosphate ion
7. How many chromosomes are found in human cells?
a.    23      b.  n       c. 23 pairs      d. 46 pairs
Correct answer: c. 23 pairs
8. What is the karyotype of the human ovum?
a. 22+X        b. 22+Y       c. 23+X  d. 44+XX
Correct answer: a. 22+X
9.Which sex chromosomes are present in the male gamete?
  a. XX                  b. XY                  c. XXY                 d. XO 
Correct answer: b. XY 
10. How many pairs of sex chromosomes are found in the human cell?
a. I pair                b. 2 pairs          c. 22 pairs          d. 23 pairs .
Correct answer: a. I pair
11. What components make up a chromosome?
a. Chromatin fibre                             b. gene and ribosomes     
c. DNA and protein                       d. RNA and protein
Correct answer:    c. DNA and protein
11. What are the primary roles of sex chromosomes?
a. To determine physical characteristics     b. To determine sex                              c. To increase immunity         d. To determine the structure of the eye
Correct answer: b. To determine sex
12. What is the smallest unit of the chromosome that helps in the transmission of hereditary characteristics
a. DNA              b. Chromatid        c. centromere         d. Gene
Correct answer: d. Gene
13. A technician working in a radiotherapy laboratory was tested after a long time of marriage when there was no childbirth. After the test, it was found that his child-production capacity was reduced because he worked in high-intensity radiation for a long time. Which part of the cell is affected in this case?
a.  DNA           b. RNA           c. Cytoplasm          d. Nucleus
Correct answer: a.  DNA
14. If there is no DNA transcription in a cell, which process is affected?
a. photosynthesis                                    b. protein synthesis     
c.  sexual reproduction                           d. cell division
Correct answer: b. protein synthesis
15 . If a nucleotide is destructed during DNA replication, what happens to the organism?
a. Genetic disorder occurs         b. It brings a problem in cell division   
c. It brings a problem in reproduction.    d. The chromosome does not function.
Correct answer: a. Genetic disorder occurs
16. Which of the following indicates the set of chromosomes in a cell of a human female?
a. 44+XY            b. 44+XX            c. 22+XY                 d. 22+XY
Correct answer: b. 44+XX
17. Which of the following statements is true?
a Ovum contains only a Y chromosome and sperm contains an X chromosome.
b. Ovum contains only an X chromosome and sperm contains a Y chromosome.
C. Ovum contains only an X chromosome and sperm contains either an X or Y chromosome.
d. Ovum and sperm both contain X and Y chromosomes.
Correct answer: C. Ovum contains only an X chromosome and sperm contains either an X or Y chromosome.
18. Which one of the flowing is DNA.
a. ATGC         b. AUGC       c. ACDC        d. AURC
Correct answer : a. ATGC
19. DNA is present in
a. chromosome                    b. nucleus, mitochondria and ER
 c. nucleus, mitochondria and choloroplast
d. nucleus, mitochondria and RER
Correct answer : a. chromosome                   
20. DNA is the genetic material in...
a. viruses, prokaryote and eukaryote      b. prokaryote and eukaryote  s  c. only in eukaryotes                               d. only in  prokaryotes
Correct answer : a. viruses, prokaryote and eukaryote
21. The two strands in a DNA  is joined by
a. co-valent bond                               b. Hydrogen bond 
c. ionic bond                                      d. phosphodiester bond
Correct answer : b. Hydrogen bond
 22. Chromatin is composed of 
 a. nucleic acids and protein                 b. nucleic acids only 
     c. proteins only                                d. none of these
Correct answer : a. nucleic acids and protein
23. The basic repeating units of a DNA molecule is
a. nucleoside        b. nucleotide     C. histones      d. amino acids
Correct answer : b. nucleotide
 24. Which of the following is not nitrogenous based of RNA
3. Adenine          b. Guanine        c. Thymine       d. Uracil 
Correct answer: c. Thymine
25. Chromosomes are made up of
a. DNA and RNA                           b. RNA and protein 
c. DNA and protein                       d. Protein and stall
Correct answer: c. DNA and protein
26. The tiny units of heredity are called......
a. chromatids   b. genes   c. cell   d. chromosomes
Correct answer: b. genes
27. Which one of the following  bases  combinations  found in RNA
a. AUGC            b. ATGE         c. ACDC       d. AURC
Correct answer: a. AUGC
28. Which of the following sugar contains is DNA
a. Ox ribose sugar                                b. Deoxyribose sugar    
c. Sugar and glucose                            d. Fructose
Correct answer: b. Deoxyribose sugar
29. On the basis of X-ray diffraction studies which one of the following  scientist proposed model of DNA
a. Watson          b. Crick      c. Watson and Crick      d. Mendel
Correct answer: c. Watson and Crick
30. How do the characteristics  of parents transfer to the children?
a. through the blood                  b. through the food
 c. through the genes                d. through the environment
Correct answer: c. through the genes
31. Which are the male gametes in human being?
a. 22 + X and 22 + X                 b. 22 + Y and 22 + Y 
c. 22 + X and 22 + Y                 d. 44 + X and 44 + Y
Correct answer: c. 22 + X and 22 + Y
32. The chromatids of a chromosome are attached to each other at a constriction known as
a. Chromatin fibre       b. Centromere      c. Histone      d. Autosome
Correct answer: b. Centromere
33. The chromosome with the centromere at the tip of the chromatids is called....
a. Metacentric chromosome         b. sub-metacentric chromosome
c. Acrocentric chromosome         d. Telocentric chromosome
Correct answer: d. Telocentric chromosome
34. How many pairs of autosomes are found in human beings?
a. 23               b. 44               c. 22                      d. 46
Correct answer: c. 22 
35. The chromosomes that determine sex is called
a. Sex chromosomes               c. Telocentric Chromosomes
b. Autosome                            d. Metacentric chromosome
Correct answer: a. Sex chromosomes
36. The total pairs of chromosomes present in a cell of human beings is....
a. 46              b. 10             c. 25             d. 23
Correct answer: d. 23
37. The tiny units of heredity are called ...........
a.  cell           b. chromosomes       c. genes         d. chromatic
Correct answer: c. genes
38. How may sex chromosomes are found in cells of human beings.
a. 1 pair             b. 22 pairs        c. 23 pairs           d. 46 pairs
Correct answer: a. 1 pair
39. Which of the following represents woman?
a. 22 + XX        b. 23+ XY       c. 44 + XY        d. 44+ XY
Correct answer: a. 22 + XX 
40. On the basis of position of centromere  chromosome are of.....
a. 3 types           b. 4 types      c. 6 types       d. 10 types
Correct answer: b. 4 types
41. Ovum and sperms are of.....
a. diploid cell      b. haploid cell    c. vegetative cell    d. both a. and b
Correct answer: b. haploid cell
42. Frog consists of following pairs of chromosomes
a. 23 pairs       b. 24 pairs       c. 13 pairs        d. 40 pairs
Correct answer: c. 13 pairs
43. Which one of the following related to the types of RNA
a. mRNA, rRNA, tRNA                     b. pRNA, rRNA, tRNA
c. vRNA, rRNA, tRNA                       d. mRNA, rRNA, tDNA
Correct answer: a. mRNA, rRNA, tRNA
44. What is the number of chromosomes in reproductive cell of human?
a 21       b 23           c. 25          d. 27
Correct answer: b 23
45. Which of the following is the diploid chromosome number of human being?
a.46                b. 32                   c. 23         d. 12
Correct answer: a.46
46. Zygote of human consists of:
a. 23 chromosomes                    b. 23 pair of chromosomes  
c. 22 pair of chromosomes        d. 20 pair of chromosomes
Correct answer : b. 23 pair of chromosomes
47. Which of the following is  not a nucleic acid?
a. DNA                 b. RNA  c. Protein   d.ATP
Correct answer: c. Protein
48. Which process is responsible for determining the sex of an individual in many organisms?
a.DNA  replication                                          b. Cell division   
C. Protein synthesis                                        d. Sex determination
Correct answer: d. Sex determination
49. Which of the following indicates the chromosomes of the cell in male body.
a.  44 + X Y       b. 44+XX         C . 22 + XY   d. 22+XX
Correct answer: b. 44+XX
50. Which of the following is the nitrogen  base present only in RNA?
a.A                b.C                       c.U             d.G
Correct answer: c.U
51.Which of the following is the factor that controls the characteristics of organisms? (K)
a.Nucleus         b. Chromosome     c. Cytoplasm        d. Cell
Correct answer: b. Chromosome
52.What type of cell is called a haploid cell? (U)
a.The cell having equal number of chromosomes as in the mother cell
b.The cell having double chromosomes than that in mother cell
c.The cell having half number of chromosomes than that of mother cell
d.The cell having the number of chromosomes four times of the mother cell
Correct answer: c.The cell having half number of chromosomes than that of mother cell
53.Which of the given genetic codes represents a woman? (HA)
a. 44+ XY       b. 44+XX       c. 22+XY    d. 22+Y
Correct answer: b. 44+XX 
54.Which of the following is the function of sex chromosome? (A)
a. Sex determination               b. Cell division
c. Protein  synthesis              d. Photosynthesis
Correct answer: a. Sex determination 
55.Which of the given scientists is considered the father of genetics? (K)
a. Charles Darwin              b. Sir Isaac Newton   
c. Gregor Mendel               d. Jean Lamarck
Correct answer: c. Gregor Mendel 
56.Where is DNA located? (K)
a. Cell          c. Chromosome      b.   Mitochondria       d. Plastid
Correct answer: c. Chromosome

Audio visual Material


B. Cell division
1.Which cell division is responsible for the healing of wounds?
a. amitosis     b. Mitosis    c.meiosis    d. meiosis and mitosis both
Correct answer : b. Mitosis
2.Which cells are produced by meiosis?
a. neuron    b. WBC     c. columnar epithelium      d. ovum.
Correct answer : d. ovum.
3.Which cell division helps in sexual reproduction, correction of chromosomal disorder and organic evolution?
a. Mitosis        b. meiosis       c. amitosis        d. fission
Correct answer: b. meiosis
4. Which of the following statements is correct for mitotic cell division?
a. Four cells are formed at the time of cell division.
b. Haploid cells are formed at the end of cell division.
c. It has the main role of forming gametes.
d. This cell division helps to repair tissue.
Correct answer: d. This cell division helps to repair tissue.
5. What is the living fluid inside the cell called?
a. soul   b. Water     c. protoplasm      d. cell sap
Correct answer : c. protoplasm
6. Why is meiosis cell division called reductional cell division?
a. number of cell decreases during meiosis
b. number of chromosomes decreases in the cell during meiosis.
c. size of cell decreases during meiosis.
d. number of chromosomes increases in the daughter cells.
Correct answer : b. number of chromosomes decreases in the cell during meiosis.
7. Name the type of cell division in which daughter cells receive an exact copy of chromosomes from parent cell?
a. mitosis  b. cleavage    c. interphage   d. meiosis
Correct answer : a. mitosis 
8. Gamete formation takes place through
a. fission  b. mitosis c. meiosis   d. amitosis
Correct answer : c. meiosis
9. In which stage of cell division, do chromosomes lose their identity?
a a. prophase   b. metaphase  c. anaphase    d. telophase 
Correct answer : c. anaphase   
10. Crossing over occurs during...
a. leptotene  b. zygotene  c. pachytene d. diplotene   
Correct answer : c. pachytene
17. Which of the following is the second stage of mitosis?
a. Prophase   b. Anaphase  c. Metaphase  d. Telophase
Correct answer : c. Metaphase
18. In meiosis, a diploid mother cell divides into:
a. two haploid daughter cells  b. two diploid daughter cells 
c. four diploid daughter cells   d. four haploid daughter cells
Correct answer : d. four haploid daughter cells
  19. Which of the following is the third stage of mitosis..
a. Prophase  b. Anaphase   c. Telophase   d. Metaphase
Correct answer : b. Anaphase
 20. Which process is responsible for the growth and repair of body tissues in multicellular organisms?
  a. Mitosis                                    b. DNA replication
  c. Meiosis                                 d. Protein synthesis
Correct answer: a Mitosis  
21. During which stage of the cell cycle does DNA replication occur?
a. Interphase   b. Prophase     c. Metaphase    d.Telophase
Correct answer: a. Interphase
22. Which type of cell division results in the formation of two identical daughter cells?
a. Mitosis     b. Meiosis  c. Cytokinesis     d.Karyokinesis
Correct answer: a. Mitosis
23. Which of the following is not a product of meiosis?
a. Gametes   b.  Somatic cells   C. Haploid cells  d. Genetic variation
Correct answer: b.  Somatic cells
24. Which of the following statements is correct for mitosis cell division.
a.Four cells are formed at the end of cell division.
b. Haploid cells are formed at the end of cell division.
c. This cell division occurs in reproductive cells
d. This cell division helps to repair cells.
Correct  answer : d. This cell division helps to repair cells.

Audio visual Material

C.  Heredity
1. How many characters did Mendel select for his experiment?
a. one              b. Two  c. three               d. seven
Correct answer: d. seven
2. What is the phenotype of   Tt   in the monohybrid cross of pure tall pea plant and pure dwarf pea plant?
a. pure tall       b. tall   c.  pure dwarf     d hybrid dwarf  
Correct answer: b. tall
3.What percentage of offspring in the second filial generation will be pure recessive?
   a. 100%     b. 50%    c. 75%     d. 25%
Correct answer: d. 25%
4. When a pure tall pea plant and a pure dwarf pea plant are crossed, what will be the phenotype of offspring in the first filial generation?
a. pure tall     b. pure dwarf      c. tall     d. both tall and dwarf 
Correct answer: c. tall
5. What percentage of organisms will be hybrid in the first filial generation of the cross-pollination o pure parents?
a. 25%           b. 50%              c. 75%                  d. 100%  
Correct answer: d. 100%
6. What is a pure organism?
a. heterozygous                                b. grown in the local village  
c. homozygous                                   d. not infected with diseases
Correct answer: c. homozygous
7. Which law of genetics is observed in the first filial generation of monohybrid cross of pure gametes?
a. law of independent assortment                  b. law of segregation    
c. law of purity of gamete                                 d. law of dominance
Correct answer: d. law of dominance
8. What is a hybrid?
a. pure organisms                         b. crossbred organisms
c. inbred organisms                     d. line bred organisms
Correct answer: b. crossbred organisms
9. If TT stands for pure tall and tt stands for pure dwarf, what does the allele Tt stand for?
a. pure tall     b. pure dwarf    c. hybrid dwarf      d. hybrid tall
Correct answer: d. hybrid tall
10. Ram is similar to his brother, what caused such similarities?
a. variation       b. Mutation        c. inheritance       d. environment
Correct answer: c. inheritance
11. What is the genotype of the second filial generation of monohybrid cross of pure parents?
a. 1:1               b. 1:3           c. 3:1           d. 1:2:1
Correct answer: d. 1:2:1
12. Which plant did Mendel use for his experiment?
a. pea        b. Gram        c. maize         d. bean
Correct answer: a. pea
13. What is the term for a characteristic that is passed down from generation to generation?
a. Dominant character             b. Recessive character  
c. Hereditary character           d. Acquired character
Correct answer: c. Hereditary character
14. A white-skinned child was born to a dark-skinned parent. What is the reason for this?
a. The parents were a hybrid black    b. parents have pure black characters
c. White colour is dominant               d. Black colour is recessive
Correct answer: a. The parents were a hybrid black
15. Who is considered as the father of genetics?
a. Darwin      b.Mendel   c.De Vries  .  d. TH Morgan
Correct answer: b.Mendel
16. The passing of characters from parents to their offspring is called
a. Genetics        b. Genes   c. Heredity      d.Hybrid
Correct answer: c. Heredity
17. A unit of information about a particular heritable   trait is called ...
a. Gene     b. Alleles      c.Phenotype  d. Genotype
Correct answer: b. Alleles
18. The genetic composition of a living organism is called....
a. Genetics     b. Gene    c. Genotype    d. Mutation
Correct answer: c.Genotype
19. The plant selected by Mendel for his experiment is....
a.Brassica compestris                    b. Zea mays  
c. Pisum sativum                           d. Musa paradisca
Correct answer: c. Pisum sativum
20. Which of the following did not constitute the seven contrasting pairs   studied by Mendel in pea plant
a. Height of the plant                              b. Colour of the flower                   
 c. Position of the flower                         d. None
Correct answer: b. Colour of the flower
21. The phenotype ratio of offspring produced in F2 generation is...
a. 3:1          b. 1:2:1 c. 9:3:3:1    d. a and b
Correct answer:  a. 3:1
22. Which one is the dominant trait in human?
 a. Black turned thumb                      b. Joint ear lobule
 c. Curly hair                                       d. Straight Hair
Correct answer: c. Curly hair
23. The genotype ratio of offspring produced in F2 generation is...
a. 3:1                b. 1:2:1           c. 9:3:31       d. a and b
  Correct answer: b. 1:2:1
24. Mendel experimented on
a. pea plant            b. mango plant   c. mouse    d. human being
Correct answer: a. pea plant  
24. Which of the following allele indicates hybrid organism?
a. TT         b. tt       c. BB          d. Bb
Correct answer: d. Bb
25. Which of the following pair represents monohybrid cross:
a. TT and tt     b. Tt and Tt        c. TT and TT      d. tt and tt
Correct answer: a. TT and tt
27. On the basis of experiment on pea plant Mendel gave...... laws.
a. 2       b. 3         c.4           d. 5
Correct answer:    b. 3
28. When a red-flowered pea plant (RR) crossed with the white-flowered pea plant (rr) in F1 generation, all plants are found red flowered. What type of character is red?
a. Dominant character                     b. Recessive character
 C. Phenotypic character                  d. Genotypic character
Correct answer: a. Dominant character
29. What term refers to the study of heredity and variation in organisms?
a. Ecology    b. Genetics   c. Evolution      d. Physiology 
Correct answer: b. Genetics
30. Who is known as the father of modern genetics?
a. Charles Darwin                b Gregor Johann Mendel 
c. James Watson                d. Francis Crick
Correct answer: b Gregor Johann Mendel
31. What is the term used to describe the physical characteristics of an organism?
a. Genotype    b Phenotype        c. Allele           d. Homozygous
Correct answer: b Phenotype
32. What did Mendel's experiments with pea plants demonstrate?
a.The presence of genes   b. The concept of natural selection
c. The role of mutations in evolution  d. The laws of inheritance
Correct answer: d. The laws of inheritance
33.What is called the branch of science which deals with the study of genes? (K)
a. Genetics  b. Genology   c.  Biology    d.  Geology
Correct answer:  a. Genetics
34.The complexion of father and mother is black but they gave birth to a white son. What is the reason behind it? (HA)
a. White complexion is dominant     b. Black complexion is recessive
c. Father and mother are hybrid        d. Both mother and father have black characteristics
Correct answer: c. Father and mother are hybrid

Audio visual Material

https://youtu.be/oYEKciz6tFQ


D. Genetic Technology
1.What is the objective of cutting, adding or transferring a portion of a gene?
a. create new species    b. improve physical traits of the organism
C. kill them      d. reproduction
Correct answer : b improve physical traits of the organism
2. In which assisted reproductive technology, the sperms are introduced in a fallopian tube?
a. in vitro fertilization                                 b. artificial insemination 
c. selective breeding                                   d. nuptial flight 
Correct answer: b. artificial insemination
3. Where is the ovum fertilized during in vitro fertilization?
a cervix      b. Uterus      c. fallopian tubes      d. Petri dish 
Correct answer: d. Petri dish
4. What is a beefalo hybrid?
a. zebra and buffalo                                          b. lion and buffalo     
c. American bison and an ox                           d. cow and buffalo
Correct answer: c. American bison and an ox
5.Roshni is a student from the Himalayan region. A mule is reared in her home for transportation of the goods. But the mule is getting older, and her family members are considering getting a new mule. In this situation, she asked her father how a mule gives birth to a child. Which of the following is the correct answer given by her father?
a. Mules produce offspring naturally     b. There is inbreeding in mule.
C. Mules cannot produce offspring naturally    d. Mules produce offspring by Al.
Correct answer: c. Mules cannot produce offspring naturally
6. Which one of the following is a demerit of inbreeding?
a. collection of original characteristics     b. conservation of good characteristics c. preservation of purebreds        d. appearance of multiple recessive characters
Correct answer: d. appearance of multiple recessive characters
7. What is a hysterosalpingogram?
a. x-ray dye test to diagnose a coronary blockage
b. x-ray dye test to diagnose problems related to fertility in females
c. x-ray test to test for fissures in bone        d. x-ray machine gun
Correct answer: b. x-ray dye test to diagnose problems related to fertility in females
8. If a farmer uses the ox of a Holstein cow to fertilize a Siri cow, what is it called?
 a. selective breeding    b. natural breeding  c. in vitro fertilization  d. inbreeding
Correct answer: a. selective breeding
9. What is the process of breeding of closely related species called?
a. inbreeding       b. line-breeding  c. crossbreeding   d. out breeding 
Correct answer: a. inbreeding
10. Ramit has produced a new plant by crossing an orange plant and a lemon plant. What type of plant is this?
a. Advanced variety plant     b. Pure plant   c. Hybrid plant  d. Artificial plant
Correct answer: c. Hybrid plant
11. Write probable causes why Mendel did not do his experiment in frogs instead of peas.
easy to keep                                             b. they cannot be fed  
c. They have a long life cycle                d. they have to few contrasting
Correct answer: c. They have a long life cycle
12. To produce good meat, farmers look for Boer goats and cross them with local goats. What kind of breeding method is this?
a. Artificial insemination     b Selective breeding     c. IVF       d. Natural selection
Correct answer: b Selective breeding
13. Who and when successfully performed artificial insemination?
a. Ommani Tamang 2005              b. Louis Joy Brown, 1978   
C. Charles Darwin 1859                 d. Lazzaro  Spallanzani, 1784
 Correct answer: d. Lazzaro  Spallanzani, 1784
14. Which assisted reproductive technology is popular in animal husbandry?
a. in vitro fertilization                               b. artificial insemination
 c. external fertilization                            d. genetic technology
Correct answer: d. genetic technology
15. What is the type of selective breeding, if the males and females from different breeds are crossed?
a. inbreeding     b. line breeding    c. crossbreeding  d. breeding
Correct answer: c. crossbreeding
16. What is the process by which a zygote is introduced into the uterus?
a intrauterine insemination       b. intracervical insemination 
 c. in vitro fertilization.              d. artificial insemination
Correct answer: c. in vitro fertilization
17. The purpose of selective breeding is to.....
a. get bigger animals                         b. get smaller animals
c. create animals with desirable traits
d. create animals with had habits
Correct answer: a. get bigger animals
18. Which of the following statement is correct?
a. The Liger is a hybrid offspring of a male lion and a female tiger.
b. The Beefalo is a fertile hybrid of beef cattle and American bison (buffalo).
c. A Zebroid is a cross between a zebra and any other cow
d. All of the above
Correct answer: a. The Liger is a hybrid offspring of a male lion and a female tiger.
 
19. A farmer has bred his pineapple plants from the sweetest pineapples from his last harvest to get sweeter pineapple plants. What is this an example of?
a. Selective breeding   b. Natural selection   c. Extinction  d. Mutagens
Correct answer: a. Selective breeding
20. What kind of people, other than lesbian/gay couples, would use In Vitro Fertilization
a. Romeo and Juliet                          b. Infertile Parents 
c. Straight Couples                           d.  Grand parent
Correct answer: b. Infertile Parents
21. Genetic engineering is used to modify the structure of.....
a. Cell    b. Nucleus     c. DNA     d.Cytoplasm
Correct answer: c. DNA 
22. A genetically modified organism is also called a............
a. Transgenic organism             b. Hybrid organism
c. Homozygous organism         d. Pure organism
Correct answer: b. Hybrid organism
23. Which of the following is the example of line breeding?
a. Breeding between parent and offspring
b. Breeding between full brother and sister
c. Breeding between cousins
d. Breeding between     half brother and sister
Correct answer: d. Breeding between     half brother and sister
24.A fact and two statements related with genetics are given below.
Statements
Fact .In vitro fertilization is a process of fertilization where an egg in combined with sperm in a glass vessel  and then it is transferred in mother's uterus
Statements
1. Sperm is not needed for this process.
2. Surrogate mother can grow the embryo in her uterus
a.The fact and the statement both are correct.
b.Fact is incorrect but both the statements are correct.
c.Fact and statement 2 are corect but statement 1 is incorrect.
d.Fact and statement 1 are correct but statement 2 is incorrect.
Correct answer: c.Fact and statement 2 are corect but statement 1 is incorrect.
26. What term refers to the deliberate manipulation of an organism's genes for practical purposes?
a. Genetic engineering                       b. Natural selection
 C. Mutation                                          d. Hybridization
Correct answer: a. Genetic engineering
27. A working in a radio therapy laboratory was tested after a long time of marriage when there was childbirth. After the test, it was found that his child production capacity was reduced because..
a.He worked in high intensity radiation for a long time
b.He worked properly at laboratory
c.He worked at home        d. None of them
Correct answer: a.He worked in high intensity radiation for a long time
28. Which of the following is not example of cross breeding?
a. Mating of lion and tiger   b.Pomato from potato and tomato
c.Self-pollination in flower   d.Hybrid of donkey and horse
Correct answer: c.Self-pollination in flower
29. Which of the following is an example of line breeding? (U)
a. Breeding between parent and son   
 b. breeding  between brother and sister   
c. breeding between elder brother and  sister 
d. breeding between grand parent and granddaughter generation
Correct answer: d. breeding between grand parent and granddaughter generation
30.Inorder to produce good meat, farmers look for Boer goats and cross them with local goats. What kind of breeding method is this?
a. Cross breeding    b.Selective breeding    c.IVF  d.Natural selection
Correct  answer : b. Selective breeding
Science and Technology
31. Which technique allows scientists to make copies of specific segments of DNA?
a. PCR (Polymerase chain reaction  b. Gel electrophoresis
c. DNA sequencing     d. CRISPR-Cas9
Correct answer: a. PCR (Polymerase chain reaction)
32. What is the purpose of genetic technology in agriculture?
a. To produce genetically modified organisms (GMOs).
b.  To clone animals for commercial purposes.
c. To eliminate genetic disorders in crops.
d. To study the genetics of endangered species.
Correct answer: a. To produce genetically modified organisms (GMOs).
32.Ramita has  produced a new plant by crossing an orange plant and a lemon plant. What type of plant is this?
a.Advanced variety plant    b. Pure plant   c. Hybrid plant  d. Artificial plant
Correct answer: c. Hybrid plant

Audio visual Material

https://youtu.be/SeJSyY0gwu0


 


                              


 

 



 


 








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