Answer:
(b) Autogamy is a method of
self-pollination in which the transfer of pollen grains from anther to stigma
of the same flower takes place. While geitonogamy, is the transfer ofpollen
grains from anther to stigma of another flower of the same plant.In the above
condition, dioecious plants (bearing only male or female flowers) prevent both
autogamy and geitonogamy. Geitonogamy is ecologically cross- pollination which is
supposed to be equivalent to self-pollination because all flowers on a plant
are genetically identical.
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