Question

Arrange the following in the order of the production of ABO blood group system antigen.
• [A.] Production of H substance
• [B.] Production of glycosyltransferase enzyme
• [C.] Addition of an extra group
• [D.] Formation of A and B antigen
Choose the correct answer from the options given below :

• A. A-B-C-D
• B. B-C-A-D
• C. C-A-B-D
• D. A-C-B-D

Hint:

H substance is the precursor for ABO blood groups. Glycosyltransferase enzymes modify it by adding specific sugars to form A and B antigens.

Answer 1

The Correct Option is A