Answer :

Pollination is the transfer of pollen or male gametes from the anther of one flower to the stigma of an other or same flower. It is the first step in the process of sexual reproduction. It is of two types:

(i) Self-pollination: - Also known as autogamy. In this, both male and female gametes are of the same flower. E.g. peas, sunflower etc.

(ii) Cross-pollination: - Also known as allogamy. In this pollens are transferred from anther of one flower to stigma of another flower with the help of wind, water or insects. E.g. Legumes, grass etc.

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