Question

The first cell of female gametophyte is

• A. Functional megaspore
• B. Microspore
• C. Megaspore mother cell
• D. Microspore mother cell

Answer 1

The correct option is A Functional megaspore

During the development of female gametophyte, the functional megaspore is the first cell of the female gametophyte. It is also called as embryo sac cell. It is haploid. It starts its development within the nucellus. It absorbs the surrounding cells and increases in size. The nucleus divides and large number of nuclei are formed. A vacuole develops in the center. The vacuole pushes nuclei and cytoplasm towards the periphery and centripetal wall is formed. It then results in the formation of megagametophyte or female prothallus.

Thus, the correct answer is option A.