Q.

The generative cell divides mitotically to give rise to the two non-motile male gametes, before the pollen grains are shed at 3-celled stage in

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a

about 90% of angiosperms.

b

around approximately 40% of angiosperms.

c

most angiospermic plants.

d

over 60% of angiosperms.

answer is D.

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Detailed Solution

In over 60% of angiosperms, pollen grains are shed at 2-celled stage. In the remaining species, it is shed at 3-celled stage.

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