Question

. Blood typing is based on the presence of proteins known as __________ on the outer surface of the red blood cell plasma membrane. A.antibodies B.antigens

Answer 1

Answer: Option B) Antigens

Blood typing is based on the presence of proteins known as antigens on the outer surface of the red blood cell plasma membrane.

Explanation:

Blood groups A, B, AB, and O are determined based on the antigen-antibody reactions between donor and recipient bloods.

For instance,

- Blood type A has antigen A on its plasma membrane

- Blood type B has antigen B on its plasma membrane

- Blood type AB has both antigen A and antigen B on its plasma membrane

- while blood type O has neither antigen A nor B on its plasma membrane

So, antigens is the answer