Question

A person with type AB blood is considered universal recipient would have __(i)___ antigens on red blood cells, and __(ii)____ antibodies in the plasma.

• A. (i) A and B,(ii) B; neither anti-A nor anti-B
• B. (i) Neither A nor B; (ii)both anti-A and anti-B
• C. (i) B, (ii) anti-A
• D. (i) A, (ii) anti-B

Answer 1

The correct option is A

(i) A and B,(ii) B; neither anti-A nor anti-B

‘A’ type blood has antibodies to antigen B of B type blood; while type B has antibodies to antigens of type A. Group AB has no antibodies as the RBCs have both A and B surface antigens which are recognised as non foreign proteins. Group O however, has antibodies to both A and B antigens.