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ABO PRACTICAL UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS COMPLETE STUDY GUIDE

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ABO PRACTICAL UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS COMPLETE STUDY GUIDE

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ABO PRACTICAL UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
COMPLETE STUDY GUIDE

●● What is another name for the ABO blood group system?
Answer: The ABO(H) blood group system.


●● Why is the ABO blood group system considered the most important
blood group system?
Answer: It is the most clinically significant because incompatible
transfusions can cause severe hemolytic transfusion reactions.


●● Who discovered the ABO blood group system?
Answer: Karl Landsteiner.


●● In what year was the ABO blood group system discovered?
Answer: 1900.


●● What determines an individual's ABO blood type?
Answer: The presence or absence of A and B antigens on the surface of
red blood cells.

, ●● Where are ABO antigens located?
Answer: On the surface membrane of red blood cells.


●● Are ABO antigens found only on red blood cells?
Answer: No. They are also found on platelets, vascular endothelium, and
many body tissues and secretions.


●● What carbohydrate precursor is required before A or B antigens can
be formed?
Answer: The H antigen.


●● What is the H antigen?
Answer: The precursor substance on which A and B antigens are built.


●● What enzyme forms the H antigen?
Answer: Fucosyltransferase.


●● Which gene produces the H antigen?
Answer: The H (FUT1) gene.


●● What sugar is added to form the H antigen?
Answer: Fucose.

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