Suppose that a small island population of 230 individuals is visited by 30 sailors who decide to stay and raise families. Suppose also that 81 people in the original population had attached earlobes and that all of the sailors had attached earlobes.
a. What are the genotype (EE, Ee, ee) and allele (E,e) frequencies for the next generation?
b. This is an example of what kind of evolutionary force?