A substance present over the surface of RBCs and is genetically heritable is called as
a) Blood group b) Haemoglobin c) Antibody d) None of these
AA
BB
CC
DD
A.
(d) Blood groups (A, B, AB and O) are determined by the presence of agglutinogen (antigens). These are attached on the surface (plasma membrane) of RBCs and called Donen’s membrane. Both antigens (A and B) are protein.