People with the same blood type
A) are always unrelated.
B) are always related.
C) may or may not be related.
D) always have both alleles in common but are not necessarily related.

Question

Quizplus · Accepted Answer

Blood type is determined by the presence or absence of specific antigens on the surface of red blood cells. While there are some common blood types, such as A, B, AB, and O, there are also many variations within each blood type that can be influenced by genetics. As a result, people with the same blood type may or may not be related, depending on their genetic background.

People with the Same Blood Type