Biology, asked by sandhyadecors, 5 months ago

in angiosperms,when pollen grains reach the stigmatic surface of flowers,when are the changes occur in pollen grains​

Answers

Answered by Anonymous
4

Answer:

Pollen grains are produced by meiosis of microspore mother cells that are located along the inner edge of the anther sacs (microsporangia). The outer part of the pollen is the exine, which is composed of a complex polysaccharide, sporopollenin.

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