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 for A and B blood types are expressed equally in an individual's phenotype. This means that both alleles are dominant and there is no recessive allele present. Incomplete dominance occurs when neither allele is completely dominant and the heterozygous phenotype is an intermediate blend of both alleles. Therefore, option B is not a correct choice. Dominance and recessive alleles require the presence of at least one dominant or recessive allele to determine the phenotype, which is not the case in codominance.

The AB Blood Type Is an Example of a Condition