Question

In flowers, which one of the following conditions will increase chances of self-pollination?

• A. Pistil is longer than stamens in a flower
• B. Stamens are just above the stigma of a pistil in a flower.
• C. In all flowers of the plant only pistil is present.
• D. In all flowers of the plant only stamens are present.

Answer 1

The correct option is B

Stamens are just above the stigma of a pistil in a flower.

The pollination of a flower by pollen from the same flower or from another flower on the same plant is known as self-pollination. In such case if stamens are present just above the stigma of pistil in a flower, then the chances of self-pollination are increased.