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1. |
In which type of parthenogenesis are only males produced ? a) Arrhenotoky. b ) Thelytoky. c) Amphitoky. d) Both a and b. Answer : a) Arrhenotoky. |
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2. |
The modes of asexual reproduction in bacteria is by. a) Formation of gametes. b) Endospore formation. c) Conjugation. d) Zoospore formation. Answer : c) Conjugation. |
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3. |
In which mode of reproduction variations are seen . a) Asexual. b) Parthenogenesis. c) Sexual. d) Both a and b. Answer : c) Sexual. |
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4.i |
Assertion (A) |
In bee society, all the members are diploid except drones. |
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Reason (R) |
Drones are produced by parthenogenesis. |
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A. If both A and R are true and R is the correct explanation for A. B. If both A and R are true but R is not the correct explanation for A. C. If A is true but R is false. D. If both A and R are false. Answer : A. If both A and R are true and R is the correct explanation for A. |
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4.ii |
Assertion (A) |
Offsprings produced by asexual reproduction are genetically identical to the parent. |
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Reason (R) |
Asexual reproduction involves only mitosis and no meiosis. |
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A. If both A and R are true and R is the correct explanation for A. B. If both A and R are true but R is not the correct explanation for A. C. If A is true but R is false. D. If both A and R are false. Answer : A. If both A and R are true and R is the correct explanation for A. |
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