Biology, asked by sureshnithya, 9 months ago

The two celled stage at at which pollen grains are discharged include

Answers

Answered by dnyaneshwar792003
1

Answer:

Explanation:

In over 60 per cent of angiosperms, pollen grains are shed at this 2-celled stage. 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).

Answered by ash2014
0

when pollen grain is mature it contains two cell, the vegetative cell and generative cell. the vegetative cell is bigger , has abundant food reserve and large irregular shaped nucleus . the generative cell is small and floats in the cytoplasm of the vegetative cell it is spindle shaped dense cytoplasm and a nucleus

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