Tuesday, May 18, 2010

How do pollen grains on a stigma cause the fertilization of egg cells?

After landing on the stigma, a pollen tube from the pollen grows down the to the ovary, where the eggs are. It then sends down sperm to fertilize the egg.





see the great animation below

How do pollen grains on a stigma cause the fertilization of egg cells?
After pollination the pollen tube acts like a courier carrying two male cells to the embryo sac.
Reply:the pollen falls

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