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Given the structure of a typical …

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Given the structure of a typical pollen grain and it's pre and post pollination changes
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Meghna Thapar 3 years, 7 months ago

Pollen grains are microscopic structures that vary in size and shape. This is important because inside this tough shell lie two cells: the tube cell, which will eventually become the pollen tube, and a generative cell, which contains the male sperm nuclei needed for fertilization. Only after pollination, when pollen has landed on the stigma of a suitable flower of the same species, can a chain of events happen that ends in the making of seeds. A pollen grain on the stigma grows a tiny tube, all the way down the style to the ovary. ... The ovary develops into a fruit to protect the seed.

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