PATHOLOGY MCQ
IMMUNE RESPONSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A only
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A and B
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B only
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neither A or B
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Detailed explanation-1: -blood group O – has no antigens, but both anti-A and anti-B antibodies in the plasma.
Detailed explanation-2: -Blood type A has an A antigen, while blood type B has a B antigen. Blood type AB has both A and B antigens. Blood type O has neither. But assigning a letter is just the first step in determining your specific blood type.
Detailed explanation-3: -O blood group is the only blood group does not have any type of antigen on their RBCs unless it’s O +ve which means it contains D/Rh factor. There is no antigen known as O but the blood has A, B and D/Rh factor as antigens.
Detailed explanation-4: -Neither the A nor B antigen. You have type O blood. Your plasma has antibodies that attack both type A and type B blood. About 48% of people (48 in 100) in the U.S. have type O blood, with 9% having O-negative (O-) blood and 39% having O-positive (O+) blood.