Question

Read the following statements
I) Directional selection occurs when natural selection favours one extreme of continuous variation.
II)Disruptive selection occurs when natural selection favours both extremes of continuous variation.
III) In directional selection, a population's genetic variance shifts toward a new phenotype when exposed to environmental changes.
IV)Random changes in gene frequencies due to chance in large population is called genetic drift.
True statements are

• A. All except II
• B. All except III
• C. All except IV
• D. All are true

Answer 1

The correct option is C All except IV

Random changes in gene frequencies due to chance in small population is called genetic drift.