THE HUMAN IMMUNE SYSTEM
BLOOD GROUPS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Anti-B antibodies
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Anti-A, B antibodies
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Anti-B antibodies
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None of the above
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Detailed explanation-1: -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: -People with type A blood have anti-B antibodies. People with type B blood have anti-A antibodies.
Detailed explanation-3: -The Anti-A, Anti-B, and Anti-A, B reagents are used in the red blood cell determination of the ABO blood group. They are used to determine the absence or presence of erythrocytic antigens A and/or B on the surface of human red blood cells.
Detailed explanation-4: -Anti-A and anti-B are found in the sera of individuals who lack the corresponding antigens. They are produced in response to environmental stimulants, such as bacteria. These antibodies are produced after birth, reaching a peak at 5–10 years of age, and declining with increasing age.
Detailed explanation-5: -The individuals who have a specific B+ type blood group have the B-antigen on the surface of RBC. But the antibodies which are present in the blood include the anti-A antibody so that they do not react with the cell surface antigen of the same person.