Question

How many meiotic division will occur to form 200 maize grains?

Answer 1

Meiotic division leads to gamete formation. In order to form 200 maize grains (200 zygotes), 200 male and 200 female gametes are required.
In the male, a single meiotic division produces 4 male gametes while in the female, single meiotic division gives rise to a single egg. Therefore,
200 male gametes are developed from 200 microspores after 50 meiotic divisions.
200 eggs are developed from 200 megaspores after 200 meiotic division.
Hence, 50 + 200 meiotic divisions= 250 meiotic divisions is required for the formation of 200 maize grains.