Type O-negative blood is the universal donor (because it has no antigens).
People with blood group AB can receive blood from other blood groups but cannot donate to them because of antibodies carried on the red blood cells of group AB donors that would destroy the red cells of a blood recipient from another group.
in the ABO blood type, there are two main anitgens or agglutinogens, A and B. A type has the A antigen, B type B antigen, O none, and AB both the A and B antigen. Thus, O is a universal donor due to its lack of antigens and AB is a univeral reciepient due to the fact that it has both antigens. btw, antigens= complex sugar molecules attached to the membrane of RBCs
Donal Logue is 51 years old (birthdate: February 27, 1966).
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