Two populations of squirrels found on opposite sides of a large mountain range have two alleles (SA, SB) of a single gene S with the following three genotype frequencies:
Population 1:
SASA 44
SASB 18
SBSB 38
Population 2:
SASA 80
SASB 20
SBSB 0
a) What is the allele frequency of SA in the two populations?
b) Dies either of the two populations appear to be at Hardy-Weinberg equilibrium? Support your answer mathematically.
c) A massive event occurs and the mountain range separating the two above populations collapses. These two populations are now capable to migrate such that the two populations which were of equal size, mixed completely and mated at random. What are the frequencies of the three genotypes and allele frequencies for both alleles in the next generation of the single new population of squirrels?