First slide

Pre-fertilisation : Structures and Events

Question

Germpore is the region of pollen grain where

Easy

A

Exine has increased thickness
B

Exine has increased ornamentation
C

Intine is absent
D

Exine is absent

Solution

The hard outer layer of the pollen grain is called exine which is made up of sporopollenin. Exine has prominent apertures called germ pores where sporopollenin is absent.

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