Question

What do you meant by microscopic development of female gametophyte?


class 12th CBSE Biology sample paper

Answer 1

In majority of flowering plants. out of four megaspore in a tetrad, only one megaspore becomes functional while other three degenerate. the only functional megaspore develops into female gametophyte (embryo sac). This method of embryo sac formation from a single megaspore is termed monosporic.

Answer 2

Female gametophyte is commonly called embryo sac or megagametophyte.
The female gametophyte of flowering plants , which produces two female gametes - egg cell and central cell for double fertilization by two sperms cells of male gametophyte .

The ovary contains one or more ovules , which in turn contain one female gametophyte, also reffered to in angiosperms as the embryo sac.
Some plants , such as cherry have only single ovary which produces two ovules , one devlop into seeds

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