Question

multiple choice question
a person with type a blood must never receive blood from which blood type?

type a

type b

type o

Explanation:

A person with type A blood has A antigens on red blood cells and anti - B antibodies in plasma. Type B blood has B antigens. If type A blood receives type B blood, the anti - B antibodies in type A blood will react with B antigens in type B blood, causing agglutination. Type A can receive type A (same antigens) and type O (universal donor, no A or B antigens). So a type A person must never receive from type B.

Answer:

B. Type B