AB blood group antigen are known as.....factor -: (A) Duffy, (B) Landsteiner, (C) Rhesus, (D) Lutheran
Answer is B. The ABO blood group system is widely credited to have been discovered by the Austrian scientist Karl Landsteiner, who identified the O, A, and B blood types in 1900. Antigens were termed on his name Ref: Ananthanarayan & Panikers textbook of microbiology 9th edition pg.no. : 191