Select the correct combination w.r.t. blood transfusion compatibility.
Universal Donor Universal Recipient
1. AB⁺ O^-
2. AB^- O⁺
3. O⁺ AB^-
4. O^- AB⁺

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answer is D.

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Detailed Solution

‘O’ blood can be donated to persons with any other blood group and hence ‘O’ group individuals are called ‘universal donors’. No antigens (neither A nor B nor Rh antigen) are present on RBCs in people with blood group O^-and hence the donated RBC cannot be clumped by recipient's antibodies. Rh antigens are present on RBCs of persons with blood group O⁺. Their RBCs can be clumped by anti-Rh antibodies present in the blood plasma of Rh^- recipients. Persons with AB⁺ blood type are universal recipients since their blood plasma lacks anti A, anti B and anti Rh antibodies.

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