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Q.

In a flower, if the megaspore mother cell forms megaspores without undergoing meiosis and if one of the megaspores develops into an embryo sac, its nuclei would be

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a

haploid

b

diploid

c

a few haploid and a few diploid

d

with varying ploidy

answer is B.

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Detailed Solution

Megaspore mother cell is diploid (2n). If it forms megaspores without meiosis, the megaspores will be diploid (2n) too. If this diploid megaspore develops into embryo sac, its nuclei would also be diploid.

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