What antigens are present in Type AB blood?

• A. Only antigen A
• B. Only antigen B
• C. Both antigen A and B
• D. No antigens

Answer: (C)

Type AB blood is characterized by the presence of both antigen A and antigen B on the surface of red blood cells. This dual presence is what distinguishes Type AB from other blood types. Individuals with Type AB blood can receive blood from any type (A, B, AB, or O) because they do not have the controlling antibodies against either A or B antigens in their plasma, making them universal recipients for blood transfusions.

In essence, the correct answer highlights the unique feature of Type AB blood, emphasizing its composition that includes both antigens. This understanding is crucial for blood typing and ensuring the safety of blood transfusions and organ transplants.