THE HUMAN IMMUNE SYSTEM
BLOOD GROUPS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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None
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Anti-Rh, only
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Anti-A and Anti-B
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Anti-A,
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Detailed explanation-1: -blood group AB – has both A and B antigens, but no antibodies.
Detailed explanation-2: -The majority of Rh antibodies are of the IgG type. Rh antibodies rarely activate complement. They bind to RBCs and mark them up for destruction in the spleen (extravascular hemolysis). Anti-D, anti-C, anti-e, and anti-c can cause severe hemolytic transfusion reactions.
Detailed explanation-3: -For example, if you have the A and Rh antigens, your blood type is A-positive (A+). If your blood has the B antigen but not the Rh antigen, your blood type is B-negative (B–).
Detailed explanation-4: -This is because the anti-A and anti-B formed in group O individuals tend to be of the IgG type (and therefore can cross the placenta), whereas the anti-A and anti-B found in the serum of group B and A individuals, respectively, tends to be of the IgM type.