First slide

Pre-fertilisation : Structures and Events

Question

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

Easy

A

haploid
B

diploid
C

a few haploid and a few diploid
D

with varying ploidy

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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