Question

Which one of the following is also called the Sewall Wright effect ?

• A. Isolation
• B. Gene pool
• C. Genetric drift
• D. Gene flow

Answer 1

The correct option is C Genetric drift

• Genetic drift is also known as Sewall Wright effect.
• It deals with the fluctuation in the gene frequency in a small population.
• Smaller the population, larger will be the fluctuation in gene frequency considering the population to be a random mating one.
• The fluctuation in the gene frequency takes place purely by chance and it is a major cause of variation.

So, the correct answer is option C.