Question

From where does the female gametophyte not develop?

• A. Megaspore mother cell
• B. Nucellus
• C. Megaspore
• D. Microspore mother cell

Hint:

Remember that the female gametophyte develops from the megaspore mother cell, whereas the male gametophyte develops from the microspore mother cell.

Answer 1

The Correct Option is D

The female gametophyte (also known as the embryo sac in angiosperms) develops from the following: 

Megaspore mother cell: Undergoes meiosis to produce megaspores, one of which develops into the female gametophyte. 

Nucellus: Provides nutrition to the developing female gametophyte. 

Megaspore: Directly develops into the female gametophyte through mitosis. However, the microspore mother cell is responsible for producing microspores, which develop into the male gametophyte (pollen grains). It is not involved in the development of the female gametophyte. Thus, the female gametophyte does not develop from the microspore mother cell.