The Rh blood group system is defined by the RHD and RHCE genes, which encode transmembrane proteins responsible for the D, C, c, E and e antigens on erythrocyte surfaces. Variability arises through ...
* Rh-null blood lacks all 61 Rh antigens, making it extremely rare and medically valuable * It can save lives as a universal donor within rare blood types * Rh-null individuals //can only receive ...