The blood groups A,B,and O are different types of
A) incomplete dominance.
B) penetrance and expressivity.
C) pleiotropy.
D) alleles.
E) heterozygotes.

Question

Quizplus · Accepted Answer

Blood groups A, B, and O are determined by different versions of a gene (alleles) that codes for a protein marker on the surface of red blood cells. Each individual has two copies of this gene, one inherited from each parent, and the combination of alleles determines their blood type.

The Blood Groups A,B,and O Are Different Types of