Isoantigen of the Rhesus system

The Rhesus (Rh) system is one of the blood groups, which is determined by the presence of the “Rh” antigen. This antigen is found on the surface of red blood cells and is associated with proteins called group A immunoglobulins. There are four different types of Rh system antigens, and each of them has its own unique number: Rh negative (Rh(D)), Rh positive (