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Person with blood group AB is considered...

Person with blood group AB is considered as universal recipient because he has :

A

both A and B antigens on RBC but no antibodies in the plasma.

B

both A and B antibodies in the plasma.

C

no antigen on RBC and no antibody in the plasma.

D

both A and B antigens in the plasma but no antibodies.

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The correct Answer is:
To understand why a person with blood group AB is considered a universal recipient, we can break down the reasoning into several steps: ### Step-by-Step Solution: 1. **Understanding Blood Groups**: Blood groups are determined by the presence of specific antigens on the surface of red blood cells (RBCs) and antibodies in the plasma. The main blood groups are A, B, AB, and O. 2. **Antigens and Antibodies**: - **Blood Group A** has A antigens on RBCs and anti-B antibodies in the plasma. - **Blood Group B** has B antigens on RBCs and anti-A antibodies in the plasma. - **Blood Group AB** has both A and B antigens on RBCs and no antibodies in the plasma. - **Blood Group O** has no antigens on RBCs but has both anti-A and anti-B antibodies in the plasma. 3. **Characteristics of Blood Group AB**: - Since individuals with blood group AB have both A and B antigens on their RBCs, they can accept blood from any other blood group without the risk of an immune reaction. - The absence of antibodies in the plasma means that there is no risk of attacking incoming blood cells that may have A or B antigens. 4. **Conclusion**: - Because individuals with blood group AB can receive blood from A, B, AB, and O blood groups without any adverse reactions, they are termed "universal recipients." ### Final Answer: A person with blood group AB is considered a universal recipient because they have both A and B antigens on their red blood cells and no antibodies in their plasma. This allows them to receive blood from any blood group without the risk of an immune response. ---
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