In the stamen of a flowering plant, meiosis produces haploid microspores that divide mitotically to produce haploid sperm in a pollen grain. Within the ovary, meiosis produces four haploid megaspores, only one of which divides mitotically three times to produce eight haploid nuclei. After pollination, one sperm fertilizes the egg cell, producing a diploid zygote; the other fuses with two nuclei to form the endosperm.
-Which structure is diploid?

Question

Quizplus · Accepted Answer

The microsporocyte is diploid before it undergoes meiosis to produce haploid microspores.

In the Stamen of a Flowering Plant, Meiosis Produces Haploid