Question

Blood group O has which of the following characteristics?

1) has the AB antigens on its plasma membrane
2) is a universal donor because they can give blood to all other groups
3) does NOT have the anti-A and anti-B antibodies in the serum
4) can receive blood from either group A or B but NOT from group AB
5) is a universal recipient because they can receive blood from all other groups

Answer 1

Blood group O is the universal donor due to the absence of both A and B antigens on the erythrocytes, allowing transfusion to any ABO blood type without immune rejection. The correct option is 1) has the AB antigens on its plasma membrane

Step-by-step explanation:

Blood group O has the following characteristics: it lacks both antigens A and B on the erythrocytes and can therefore be given to people with any ABO blood type.

This group is often called the universal donor, as type O blood has neither A nor B antigens, preventing an immune response after transfusion to individuals with different blood types.

However, it is not a universal recipient, because people with type O blood have both anti-A and anti-B antibodies in their plasma, which means they can only receive blood from other type O individuals.

The comprehensive chart illustrating these compatibilities was summed up in Figure 18.17 in the provided materials. The correct option is 1) has the AB antigens on its plasma membrane