First slide

Pre-fertilisation : Structures and Events

Question

In maize:

Easy

A

Autogamy can be prevented but not geitonogamy.
B

Both autogamy and geitonogamy can be prevented.
C

Only xenogamy occurs.
D

Geitonogamy and xenogamy is prevented.

Solution

Maize is a monoecious plant ,i.e, staminate and pistillate flowers are present on the same plant. Therefore, Autogamy is prevented as the flowers are unisexual but geitonogamy cannot be prevented.

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