Q.

A plant cell has 8 bivalents at prophase I of meiosis. How many chromosomes and chromatids respectively are present in each gamete of the plant?

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a

8 chromosomes, 16 chromatids

b

8 chromosomes, 8 chromatids

c

16 chromosomes, 32 chromatids

d

8 chromosomes, 4 chromatids

answer is B.

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Detailed Solution

If the no. of bivalent is 8. Then the total no. of chromosomes in diploid stage will be 16. Hence in the gametes, there is n no. of chromosome and chromatids. Therefore, the no. of chromosomes and chromatids will be 8.

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