Question

Unisexuality of flowers prevents ______.

Options

• autogamy and geitonogamy

• both geitonogamy and xenogamy

• autogamy but not geitonogamy

• geitonogamy but not xenogamy

Answer 1

Unisexuality of flowers prevents autogamy but not geitonogamy.

Explanation:

A unisexual flower cannot pollinate itself, so autogamy is prevented. In a monoecious plant, pollen can still move between male and female flowers on the same plant by geitonogamy.