A person with blood type AB can receive blood can:

I. Receive blood from someone with blood type A

II. Receive blood from someone with blood type B

III. Receive blood from someone with blood type O
  1. I only
  2. II only
  3. III only
  4. I and II only
  5. I, II, and III
Explanation
Answer: E, I, II, and III. A person with AB blood type is often called the “universal recipient”, as he or she can accept blood from individuals with any blood type.

Key Takeaway: Blood type is characterized by the presence or absence of two types of antigens, or an agent that can cause an immune response. These two types of antigens are called IA and IB. Individuals with only IA have the A blood type, and those with IB have the B blood type. Individuals with both antigens have AB blood type, and those with neither have O blood type. If the antigen of the donor’s blood is not already present in the recipient’s blood, an immune response will take place. Since O blood does not have any antigens, that blood will not cause an immune response in any recipient. Thus, individuals with O type blood are called “universal donors”.
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