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Q.

Given below are two statements: one is labelled Assertion (A) and other is labelled Reason (R).

Assertion (A): Haploid gametes are formed from male honey bee by mitosis.

Reason (R): Drones are developed parthenogenetically from unfertilised eggs.

In the light of above statements, choose the correct answer from the options given below.

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a

Both A and R are correct and R explains A.

b

Both A and R are correct, but R does not explain A.

c

A is true and R is false.

d

Both A and R are false.

answer is A.

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Detailed Solution

In Honey bees an offspring formed from the union of a sperm and an egg develops as a female (queen or worker), and an unfertilised egg develops as a male (drone) by means of parthenogenesis. This means that the males have half the number of chromosomes than that of a female. The females are diploid having 32 chromosomes and males are haploid, i.e., having 16 chromosomes. The males produce sperms by mitosis.

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Given below are two statements: one is labelled Assertion (A) and other is labelled Reason (R).Assertion (A): Haploid gametes are formed from male honey bee by mitosis.Reason (R): Drones are developed parthenogenetically from unfertilised eggs.In the light of above statements, choose the correct answer from the options given below.