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

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 (A) haploid (B) diploid (C) a few haploid and a few diploid (D) with varying ploidy

Tardigrade Admin · Accepted Answer

If meiosis does not take place in the Megaspore Mother Cell (MMC), the megaspores formed will be diploid. If one of these diploid megaspore forms the embryo sac, all the nuclei will be diploid, except for the polar cell which would be tetraploid.

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

haploid

diploid

a few haploid and a few diploid

with varying ploidy

If meiosis does not take place in the Megaspore Mother Cell (MMC), the megaspores formed will be diploid. If one of these diploid megaspore forms the embryo sac, all the nuclei will be diploid, except for the polar cell which would be tetraploid.