First slide

Pre-fertilisation : Structures and Events

Question

How many megaspores take part in the development of a monosporic female gametophyte?

Easy

A

One
B

Two
C

Three
D

Four

Solution

A majority of flowering plants, one of the megaspores is functional while the other three degenerate. Only the functional megaspore develops into the female gametophyte (embryo sac). This method of embryo sac formation from a single megaspore is termed monosporic development.

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