Question

Populations are often small when they have just been founded by a group of individuals that have moved to a new location. The allele frequencies in the new populations are likely to be different from what they were in the source population. What is this called?

1) Inbreeding depression
2) Mutation-selection balance
3) One-island migration
4) Founder effect

Answer 1

The phenomenon described is called the founder effect, where a small group of individuals establish a new population with different allele frequencies from the source population.

Step-by-step explanation:

The phenomenon described in the question is called the founder effect. The founder effect occurs when a small group of individuals move to a new location and establish a new population. The allele frequencies in this new population are likely to be different from those in the source population.