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Questions and Answers
What type of blood group would a person have if their blood shows agglutination with anti-B serum only?
Which blood group does not produce any antibodies in the serum?
If the result from testing an unknown blood sample shows no agglutination with either anti-A or anti-B sera, which blood type is it?
In the ABO blood grouping, what is the role of the antibodies present in the serum?
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What antigens would you expect to be present in a blood sample classified as Type A?
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Study Notes
ABO Blood Grouping
- The basis for blood grouping is the antigen-antibody reaction.
- A specific antigen reacts only with its corresponding antibody, resulting in agglutination (clumping of red blood cells).
- ABO blood grouping is based on the presence or absence of antigens A and B on red blood cells.
- Blood Type A: Contains antigen A
- Blood Type B: Contains antigen B
- Blood Type AB: Contains both antigens A and B
- Blood Type O: Contains neither antigen A nor antigen B
- Antibodies in the ABO system are present in the serum from birth.
- Blood Type A: Contains anti-B antibodies
- Blood Type B: Contains anti-A antibodies
- Blood Type AB: Contains no antibodies
- Blood Type O: Contains both anti-A and anti-B antibodies.
- The presence or absence of agglutination reactions, when tested with anti-A and anti-B sera, determines the blood group.
- If agglutination occurs with anti-A serum, the blood group is A.
- If agglutination occurs with anti-B serum, the blood group is B.
- If agglutination occurs with both anti-A and anti-B serum, the blood group is AB.
- If no agglutination occurs with either anti-A or anti-B serum, the blood group is O.
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Description
Test your knowledge on ABO blood grouping and the corresponding antigen-antibody reactions. Understand the characteristics of each blood type and the significance of agglutination tests in determining blood groups.
