Question

Human blood types in the ABO blood group are identified by

Group of answer choices

A. microscopic examination of white blood cells

B. a series of enzyme controlled reactions

C. antigen-antibody reactions

D. clotting factors in the plasma

Answer 1

The answer would be B.

Answer 2

C. antigen-antibody reactions

Step-by-step explanation:

human blood group is determined by the presence of antigens on the red blood cells which are specific proteins.

so specific antibodies are used against these antigens to determine the type of blood group after the reaction.