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Question

Plant which prevent both autogamy and geitonogamy is

A
Castor
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B
Maize
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C
Datepalm
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D
Cucumber
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Solution

The correct option is C Datepalm
  • Autogamy is the transfer of pollen grains from the anther to the stigma of the same flower. Geitonogamy is the transfer of pollen grains from the anther to the stigma of another flower of the same plant.
  • Date palm is the dioecious plant, as it bears exclusively either male flowers or female flowers
  • Hence, autogamy and geitonogamy are not possible in dioecious date palm plant because it bears either male or female flowers but not both.
So, the correct answer is 'Datepalm'.

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