Question

If both male and female flowers are present on the same plant, such as castor and maize
It prevents autogamy but not geitonogamy
It prevents geitonogamy but not autogamy
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It allows both geitonogamy and autogamy
It allows xenogamy but not geitonogamy​

Answer 1

Answer:

In maize and castor plants, unisexual flowers are present.

The flowers are known as unisexual when there are separate sex organs in separate flowers.

However, both the male and female flowers can be present on the same plant. Since there are separate flowers which prevent autogamy.

But both the flowers are borne on the same plant. This induces the chances of geitonogamy.

Thus, the correct answer is option A.

Answer 2

Answer:

It prevents autogamy but not geitonogamy

Explanation:

Autogamy is the pollination between anther and stigma of same flower.

Geitonogamy is the pollination between anther and stigma of different flowers of same plant.