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of another in cross-pollination. In a case of self-pollination, this process takes place from the anther of a flower to the stigma of the same flower.

Pollen is infrequently used as food and food supplement. It is often contaminated by agricultural pesticides.

Structure and formation

Pollen itself is not the male gamete. It is a gametophyte, something that could be considered an entire organism, which then produces the male gamete. Each

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