Question

A dioecious flowering plant prevents both :

• A. Autogamy and xenogamy
• B. Autogamy and geitonogamy
• C. Geitonogamy and xenogamy
• D. Cleistogamy and xenogamy

Answer 1

The correct option is B Autogamy and geitonogamy

Plants in which male and female flowers are present on different plants are sid to be dioecious. Example - Papaya.

This condition prevents autogamy (self pollination within the same flower), geitonogamy (self pollination between different flowers of the same plant) and cleistogamy (self pollination in closed flowers)

It promotes xenogamy or cross pollination.