Question

Pollen grains shed at 2 celled stage in

Answer 1

Answer:

Answer is ANGIOSPERMS

In over 60 % of angiosperms, pollen grains are shed at this 2-celled stage tube cell or vegetative cell generative cell. In the remaining species, the generative cell divides mitotically to give rise to the two male gametes before pollen grains are shed tube cell or vegetative cell two male gamete 3-celled stage. In 3 celled stage, the pollen grains further germinate on the stigma to produce pollen tube through one of the germ pores. The contents of the pollen grains move into the tube pollen tube grows through the .tissues of the stigma and style and reaches to ovary. Inplants, when pollen grains are shed at 2 celled stage the generative cell divides and forms two male gametes during the growth of the pollen tube in the stigma.

Explanation:

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Answer 2

Explanation:

Angiosperms

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