Research shows that people with blood ... and anti-B antibodies in plasma. There are also two Rh factors: positive and negative. Thus, blood can be divided into 8 groups: A+, A-, B+, B-, AB+ ...
A-, B+, B-, O+. O-, AB+, AB- blood types. Group A blood type has only A antigens on red blood cells and B antibody in the plasma. B has only B antigen on red cells and A antibody in the plasma.
Knowing your blood type is more important than you think. Here's why and tips for finding yours before an emergency happens. Macy Meyer is a North Carolina native who graduated from UNC-Chapel ...