what are the differences in shedding of pollen grains in 2-celled 3 celled stages? why does this difference take place?

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Solution

2-celled stage 3-celled stage

Shedding of pollen grains at two celled stage means that the pollen contains one generative cell and one vegetative cell. Shedding of pollen grains at three celled stage means that the pollen contains two sperms and one vegetative cell.

Evolutionary less advanced. Evolutionary more advanced.

Pollen grains can tolerate prolonged storage. Pollen grains lose viability on prolonged storage

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Similar questions

3

How much percentage of pollen grains do angiosperms sheds at 2- celled stage?

When pollen grain is shed at 3-celled stage, name the cells it contains.

OPTIONS

A) 1 vegetative cell and 2 male gametes

B) 1 generative cell and 2 male gametes

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2-celled stage	3-celled stage
Shedding of pollen grains at two celled stage means that the pollen contains one generative cell and one vegetative cell.	Shedding of pollen grains at three celled stage means that the pollen contains two sperms and one vegetative cell.
Evolutionary less advanced.	Evolutionary more advanced.
Pollen grains can tolerate prolonged storage.	Pollen grains lose viability on prolonged storage