Question

Why does the antigen on the red blood cells is not attacked by the antibodies present in the plasma ( for example : why the antigen a is not attacked by the antibody b in case of blood group A)?

Answer 1

Answer:

People with type AB+ blood are universal recipients because they have no antibodies to A, B or Rh in their blood and can receive red blood cells from a donor of any blood type. ... Their plasma does not contain A or B antibodies and can be transfused safely to all blood types.