Question

(a) Explain the development of female gametophyte from a megaspore mother cell in an angiosperm.
(b) Draw a labelled diagram of a fully developed embryo sac.

Answer 1

Answer:

This megaspore mother cell divides by meiosis to produce four haploid megaspores which are arranged in a linear tetrad. 3) One of the megaspores is functional, while the other three degenerate in angiosperms. The lower chalazal megaspore produces the female gametophyte (embryo sac).

Answer 2

Answer:

This megaspore mother cell divides by meiosis to produce four haploid megaspores which are arranged in a linear tetrad. 3) One of the megaspores is functional, while the other three degenerate in angiosperms. The lower chalazal megaspore produces the female gametophyte (embryo sac).