The AB blood type is an example of a condition that results from:
A) dominance
B) incomplete dominance
C) recessive alleles
D) codominance

Question

Quizplus · Accepted Answer

The AB blood type is an example of codominance, where both alleles are expressed equally in the heterozygous state. In this case, the A and B alleles are codominant and produce a phenotype with both A and B antigens on the surface of red blood cells. The O allele is recessive to both A and B alleles, resulting in the O phenotype when homozygous (OO). Dominance and incomplete dominance do not account for the expression of both alleles in a heterozygous individual.

The AB Blood Type Is an Example of a Condition