Question

Allogamy is favoured by

• A. Homogamy
• B. Cleistogamy
• C. Monocliny
• D. Dicliny

Answer 1

The correct option is D Dicliny

Allogamy, also known as cross pollination, is the transfer of pollen grains from the anther of one flower to the stigma of another flower borne on a separate plant.

Dicliny is the presence of only one kind of reproductive whorl in a flower. It is also called unisexuality.

A plant may be monoecious i.e. male and female flowers are present on the same plant. In such cases, both cross pollination and self pollination can occur.

Or the plant may be dioecious i.e. male and female flowers are present on different plants. In such cases, only cross pollination can occur. Thus, dicliny favours allogamy or cross pollination.

So, the correct answer is D.