: Blood Types

Blood group Types, Uses, & Facts blood type The ABO System · A type blood has only A antigens on red blood cells · B type blood has only B antigens on red blood cells · AB has both A and B blood type AB's Group O can donate red blood cells to anybody It's the universal donor Click on a blood type below to learn more Group AB can donate to other AB's

blood link It was not until the year 1900, when Karl Landsteiner at the University of Vienna, discovered why some blood transfusions were successful while others could be