Question

Why is cross-pollination preferred over self-pollination?

• A. The fruits developed after fertilisation are larger.
• B. It increases the chances of variation.
• C. It takes less time for fertilisation.
• D. It makes sure that variations don't occur.

Answer 1

The correct option is B

It increases the chances of variation.

Cross-pollination is a type of pollination in which pollen grains come from another plant. Cross-pollination is preferred because it brings about variation in species. Self-pollination does not bring about any variations. Variation brings new traits to the plant which may be advantageous to the plant. For example, it helps the new plant to defend against diseases.