There are three genes in the gene pool for blood, A, B, and O. Two of these three are present in a person’s blood: A and B dominate O, whereas A and B are codominant. This gives the following possibilities:

Let p, q, and r represent the relative frequencies of the genes A, B, and O, respectively, in the blood gene pool. Suppose a certain population has 20% type A, 30% type B, and 50% type O. Construct a Punnett square and find (p + q + r)² to answer the following questions. What percent of the population has each genotype? What percent of the population has each phenotype?

Transcribed Image Text:

Genotype AA AO AB BO BB 00 Phenotype type A blood type A blood type AB blood type B blood type B blood type O blood