First slide

Pre-fertilisation : Structures and Events

Question

Statement A: In more than 60% of angiosperms, pollen grains are shed at 2-celled stage.
Statement B: In less than 40% of angiosperms, the generative cell divides mitotically to give rise to the two male gametes before pollen grains are shed

Easy

A

Statement A and Statement B are correct
B

Statement A and Statement B are incorrect
C

Statement A is correct but Statement B is incorrect
D

Statement A is incorrect but Statement B is correct

Solution

In over 60 per cent of angiosperms, pollen grains are shed at this 2-celled stage (contains two cells, the vegetative cell and generative cell). In the remaining species, the generative cell divides mitotically to give rise to the two male gametes before pollen grains are shed (3-celled stage).

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App