Question

Unisexuality of flowers prevents:

• A. Geitonogamy, but not xenogamy
• B. Autogamy and geitonogamy
• C. Autogamy, but not geitonogamy
• D. Both geitonogamy and xenogamy

Answer 1

The correct option is C Autogamy, but not geitonogamy

A unisexual flower has either female or male reproductive parts. Hence pollination cannot happen within the same flower (autogamy). But pollination can occur between two unisexual male and female flowers of the same plant (geitonogamy) and between two unisexual male and female flowers of different plants (xenogamy).