First slide

Pre-fertilisation : Structures and Events

Question

Identify A, B and C from the diagram given below:

Moderate

A

A-Xenogamy; B-Autogamy; C-Geitonogamy
B

A-Autogamy; B-Xenogamy; C-Geitonogamy
C

A-Geitonogamy; B-Autogamy; C-Xenogamy
D

A-Xenogamy; B-Geitonogamy; C-Autogamy

Solution

Autogamy : Transfer of pollen grains from the anther to the stigma of the same flower.
Geitonogamy: Transfer of pollen grains from the anther to the stigma of another flower of the same plant.
Xenogamy – Transfer of pollen grains from anther to the stigma of a different plant.

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