Q.

Functional megaspore in an angiosperm develops into an                       [2017]

1 endosperm    
2 embryo sac  
3 embryo   
4 ovule  

Ans.

(2)

In angiosperms, the functional megaspore is the first cell of female gametophyte. It enlarges and undergoes three nuclear mitotic divisions to form embryo sac.