A dioecious flowering plant prevents both: | vedclass

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(B) In a dioecious plant,male and female flowers are present on different plants.$1$. Autogamy is the transfer of pollen grains from the anther to the

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Autogamy and Geitonogamy

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(B) In a dioecious plant,male and female flowers are present on different plants.$1$. Autogamy is the transfer of pollen grains from the anther to the stigma of the same flower. Since the plant is dioecious,this is impossible.$2$. Geitonogamy is the transfer of pollen grains from the anther to the stigma of another flower of the same plant. Since the plant is dioecious,the male and female flowers are on different individuals,making this impossible as well.Therefore,dioecy prevents both autogamy and geitonogamy.

$A$ dioecious flowering plant prevents both:

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