Question

Read the following statements and select the correct option.
A. Increase in melanised moths after industrialisation in Great Britain is a proof for natural selection.
B. When more individuals of a population acquire a mean character value, it is called disruption.
C. Changes in allelic frequency in a population will lead to Hardy-weinberg equilibrium.
D. Genetic drift changes the existing gene or allelic frequency in future generations.

• A. B alone is correct.
• B. D alone is correct.
• C. A and D alone are correct.
• D. B and D alone are correct.

Answer 1

The correct option is A B alone is correct.

In this case, the variance of the trait increases and the population is divided into two distinct groups. In this more individuals acquire peripheral character value at both ends of the distribution curve.

So, the correct option is 'B alone is correct.'.