First slide

Pre-fertilisation : Structures and Events

Question

Outbreeding device which prevents both autogamy and geitonogamy is

Easy

A

being monoecious as in date palm
B

self incompatability as in tobacco
C

being dioecious as in papaya
D

being monocliny as in cucumber

Solution

Dioecy prevents both autogamy as well as geitonogamy.

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