What is the role of the glycosyltransferase enzyme in the synthesis of ABO blood group antigens?

A It adds a galactose molecule to the antigen
B It adds a fucose molecule to the antigen
C It adds an N-acetylgalactosamine molecule to the antigen
D It adds a glucose molecule to the antigen
The glycosyltransferase enzyme is responsible for adding an N-acetylgalactosamine molecule to the H antigen, resulting in the formation of the A antigen.
Lecture Notes in Biochemistry
Hematology Hematology: Blood Grouping and Crossmatching Hematology: Blood Grouping and Crossmatching Hard MEDICAL Confidence: high