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Q.

Persons with ‘O’ blood group are described as “universal donors”. This is due to

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a

presence of antigens A and B on the surface of RBC

b

absence of anti - A and anti - B antibodies on the surface of RBC

c

presence of anti - A and anti - B antibodies in plasma

d

absence of antigens A and B on the surface of RBC

answer is B.

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Detailed Solution

‘O’ blood group persons are universal donors due to absence of antigen A and antigen B.

'A' blood group persons have antigen A on the surface and anti-B antibodies in the plasma.

'B' blood group persons have antigen B on the surface and anti-A antibodies in the plasma.

'AB' blood group persons have antigens A and B on the surface and anti-A and anti-B antibodies in the plasma.

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