A person's blood type is determined by
A) the size of the red blood cells.
B) the shape of the red blood cells.
C) the chemical character of the hemoglobin.
D) the presence or absence of specific glycoprotein molecules on their cell membrane.
E) the number of specific molecules on the cell membrane.

Question

Quizplus · Accepted Answer

A person's blood type is determined by the presence or absence of specific glycoprotein molecules on their cell membrane. The four main blood types are A, B, AB, and O, which are determined based on the presence or absence of the A and B glycoproteins on the red blood cell membrane. The presence of both A and B glycoproteins results in blood type AB, while the absence of both results in blood type O.

A Person's Blood Type Is Determined by