First slide

Pre-fertilisation : Structures and Events

Question

The pollen grains of a bisexual chasmogamous flower can be involved in

Moderate

A

Only autogamy
B

Only autogamy and geitonogamy
C

Autogamy, geitonogamy and xenogamy
D

Only geitonogamy and xenogamy

Solution

The pollen grains of a chasmogamous bisexual flower can be deposited on the stigma of same flower (autogamy), stigma of another flower of the same plant (Geitonogamy) or another flower of another plant of the same species (xenogamy).

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