In a mating between individuals with the genotypes I^AI^B× ii,what percentage of the offspring are expected to have the O blood type? A)0% B)50% C)25% D)100% E)75%

Question

Quizplus · Accepted Answer

The O blood type is only possible when the genotype is ii. In this mating, one parent has the genotype I^AI^B, which means they can only produce gametes with the alleles I^A or I^B. The other parent has the genotype ii, which means they can only produce gametes with the allele i. Therefore, all of the offspring will have the genotype I^Ai or I^Bi, which means they will have the A or B blood type, not the O blood type.

In a Mating Between Individuals with the Genotypes IAIB ×

In a Mating Between Individuals with the Genotypes I^AI^B×