MCAT Question A Day - 8/26/14 - Answer!
Which of the following is true concerning type B negative blood?
A. Type B negative blood will make antibodies that attack type A. antigens but not type B antigens.
B. Type B negative blood will make antibodies that attack type B antigens but not type A antigens.
C. Type B negative blood will make antibodies that attack type O antigens only.
D. Type B negative blood will make antibodies that attack both type A and type O antigens.
A is correct. Type B negative blood carries B antigens and not the Rh factor. It does not carry A antigens. There are no O antigens. Thus type B negative blood makes antibodies that will only attach A antigens and Rh antigens.
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A is correct. Type B negative blood carries B antigens and not the Rh factor. It does not carry A antigens. There are no O antigens. Thus type B negative blood makes antibodies that will only attach A antigens and Rh antigens.
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