SCIENCE
CIRCULATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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B
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AB
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None
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A
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Detailed explanation-1: -blood group A – has A antigens on the red blood cells with anti-B antibodies in the plasma. blood group B – has B antigens with anti-A antibodies in the plasma. blood group O – has no antigens, but both anti-A and anti-B antibodies in the plasma. blood group AB – has both A and B antigens, but no antibodies.
Detailed explanation-2: -If your blood is A positive (A+), it means that your blood contains type-A antigens with the presence of a protein called the rhesus (Rh) factor. Antigens are markers on the surface of a blood cell.
Detailed explanation-3: -There are currently 43 recognised blood group systems containing 349 red cell antigens (September 2022). The 43 systems are genetically determined by 48 genes.
Detailed explanation-4: -The antigens present on our own red blood cells in our own body are termed self-antigens and do not generate an antibody response. Therefore, the answer is a. Important self-antigens on the surface of red blood cells are the A and B antigens of the ABO blood system.
Detailed explanation-5: -Rh factor is a red blood cell antigen that you inherit from your parents. If you don’t have Rh antigens on your blood cells, but your unborn baby does, then you have Rh incompatibility.