In papaya male and female flowers are present on different plants. It permits
Autogamy
Geitonogamy
Both autogamy and geitonogamy
Xenogamy
The phenomenon in which, anther and stigma grow and mature at same time is called
In which one of the following, both autogamy and geitonogamy are prevented?
A dioecious flowering plant prevents both
Dioecious condition prevents