Question 4 (Mandatory) (0.5 points)
The allele for sticky, yellow ear wax (as opposed to gray, dry ear wax) is found at a rate of 20% in
Brazilian-Americans, 1% in European-Americans, and 10% in the children of Brazilian-American and
European-American parents. Which force of evolution is likely responsible for the percentage of
children who have it?
Natural Selection
Random Genetic Drift
Gene Flow
Mutation