Type AB of the ABO blood group is an example of ________.
A) complete dominance
B) codominance
C) incomplete dominance
D) recessiveness
E) polymorphism

Question

Quizplus · Accepted Answer

In codominance, both alleles in a heterozygous combination are fully expressed, leading to a phenotype that simultaneously displays the traits of both alleles. Type AB blood is an example of this, as both A and B alleles are expressed equally, resulting in the presence of both A and B antigens on the surface of red blood cells.

Type AB of the ABO Blood Group Is an Example