What are the antigens and antibodies of each blood type of the ABO blood system?
Type A: antigen A, antibody anti-B. Type B: antigen B, antibody anti-A. Type AB: antigens A and B, doesn't produce antibody A neither antibody B. Type O: doesn't have antigen A neither antigen B, has antibodies anti-A and anti-B. (Obviously the antibodies are made by the Blymphocytes not by red blood cells.)