First slide

Pre-fertilisation : Structures and Events

Question

The germ pore is the place of

Easy

A

emergence of radicle.
B

absorption of water for seed germination.
C

initiation of pollen tube.
D

absorption of ions.

Solution

The germ pores are apertures in the exine layer of a pollen grain which help in the initiation of pollen tube and the release of the male gametes during fertilisation. There are usually three germ pores in dicots (tricolpate) and one in monocots (monocolpate).

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