First slide

Pre-fertilisation : Structures and Events

Question

Pollens have two prominent walls which are __A_ and B_ Here A and B refers to

A B
1 intine protein coat
2 exine intine
3 sporopollenin intine
4 sporopollenin exine

Easy

A

1
B

2
C

3
D

4

Solution

Pollen grains represents the male gametophytic generation. The pollen grains have a two-layered wall, the outer exine and inner intine. The exine is made up of sporopollenin and has germ pores.

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