Hybrid vigour is due to

Options

(a) heterosis
(b) overpopulation
(c) both heterosis and overpopulation
(d) none of these

Correct Answer:

heterosis

Explanation:

Heterosis or hybrid vigour is the condition in which the expression of a characteristic is greater in the heterozygous offspring than in either of the homozygous parents. The term was coined by G.H. Shull.