Question

Microspores are derived from or develop from

a) the egg
b) microspore mother cells
c) pollen grains
d) megaspore mother cells

Answer 1

Microspores are derived from microspore mother cells in a plant's microsporangium. Each microspore gives rise to a pollen grain, which contains a generative cell and a pollen tube cell. The generative cell divides to form two sperm cells. So, the correct answer is option b.

Step-by-step explanation:

Microspores are derived from or develop from microspore mother cells (b). Within the microsporangium, each of the microspore mother cells divides by meiosis to give rise to four microspores, each of which will ultimately form a pollen grain. The mature pollen grains contain a generative cell and a pollen tube cell. The generative cell divides to form two male gametes (sperm cells).

So, the correct answer is option b.