In a donor population, the allele frequencies for the normal (HbA) and the sickle-cell allele (HbS) are 0.9 and 0.1 respectively. A group of 55- individuals migrates to a new population containing 10,000 individuals; in the recipient population, the allele frequencies are HbA = 0.99 and HbS = 0.01. a. […]