Blood type genetics

Blood type genetics determine our blood group based on specific markers called antigens on red blood cells, primarily A, B, and Rh (positive or negative). These are inherited from our parents, with each person receiving one gene for blood type from each parent. The combinations result in different blood types: A, B, AB, or O, and whether we are Rh positive or negative. For example, if you inherit an A gene from one parent and an O gene from the other, your blood type is A. These traits follow simple Mendelian inheritance patterns, influencing compatibility for blood transfusions and some health conditions.