Question

Hybrid vigour can be maintained for long periods by ______.

Options

• clonal selection

• cross pollination

• mutation

• selfing

Answer 1

Hybrid vigour can be maintained for long periods by clonal selection.

Explanation:

Hybrid vigour (heterosis) can be maintained for long periods through clonal selection, as it involves producing genetically identical offspring from a single parent. This preserves the hybrid’s superior traits over successive generations.