Answer :
(i) POLLINATION: Pollination is the act of transferring pollen grains from the male anther of a flower to the female stigma.
TYPES OF POLLINATION
Pollination is chiefly of two types:
• self-pollination
• cross-pollination
SELF POLLINATION: It is the transfer of pollen grains from the anther to the stigma of either the same flower or another flower of the same plant.
It is of two types-
Autogamy- when pollens are transferred from the anther to the stigma of the same flower.
Geitonogamy- when pollens are transferred from the anther to the stigma of another flower of the same plant.
CROSS-POLLINATION: It is the transfer of pollen grains from the anther to the stigma of a flower on the different plant.
It is sometimes also referred to as Xenogamy or Allogamy.
(ii) A diagram showing a longitudinal section of female reproductive part of a flower showing germination of the pollen grain is as follows:
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