THE HUMAN IMMUNE SYSTEM
BLOOD GROUPS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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People who have the A antigen normally would not produce the anti-A antibody.
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People who are type AB normally produce both anti-A and anti-B antibodies.
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The only ABO type blood that normally does not have either A or B antigens is AB.
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Detailed explanation-1: -Answer and Explanation: The correct answer is 1. People who have the A antigen normally would not produce the anti-A antibody.
Detailed explanation-2: -For example, people with type A blood will have the A antigen on the surface of their red cells (as shown in the table below). As a result, anti-A antibodies will not be produced by them because they would cause the destruction of their own blood.
Detailed explanation-3: -it is true that we may come in contact with plant and microorganism’s antigen that cause the body to develop ABO antibody like antibodies. so those antibodies will remain in one’s system prior to the first contact with blood of a different ABO type.
Detailed explanation-4: -ABO antigens and antibodies These naturally occurring antibodies are mainly IgM immunoglobulins. They attack and rapidly destroy red cells carrying the corresponding antigen. For example, anti-A attacks red cells of Group A or AB. Anti-B attacks red cells of Group B or AB.
Detailed explanation-5: -Antibodies are produced by B cells (specialized white blood cells). When an antigen comes into contact with a B cell, it causes the B cell to divide and clone. These cloned B cells-or plasma cells-release millions of antibodies into your bloodstream and lymph system.