Question

Founders effect and bottleneck effect helps us to understand

• A. gene migration
• B. genetic drift
• C. natural selection
• D. mutation

Answer 1

The correct option is B genetic drift

In population genetics, the founder effect is the loss of genetic variation that occurs when a new population is established by a very small number of individuals from a larger population. This is a result of genetic drift.

The bottleneck effect is an extreme example of genetic drift that happens when the size of a population is severely reduced.

Gene migration and mutation in a population contributes to genetic drift.

Natural selection is the Darwinian theory which states that nature selects the fittest species to survive while the weak or diseased ones are wiped out. Natural selection does not help us to understand the founder effect and bottleneck effect.