Understanding the ABO Blood Group System
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Understanding the ABO Blood Group System

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Questions and Answers

Which blood group phenotype results from the genotype A/B?

  • B phenotype
  • AB phenotype (correct)
  • A phenotype
  • O phenotype

    • Which gene produces the B antigen in the ABO blood group system?

  • B allele (correct)
  • O allele
  • A allele
  • AB allele

    • Inheritance of which allele results in no antigens (silence gene) and is recessive to A and B?

  • O allele (correct)
  • B allele
  • A allele
  • AB allele

    • How many main phenotypes are there in the ABO blood group system?

    <p>4</p> Signup and view all the answers

    Where is the ABO gene located?

    <p>$9^{th}$ chromosome</p> Signup and view all the answers

    Which of the following is the correct description of the ABO blood group system?

    <p>It consists of two antigens, A and B, and has 3 alleles: A, B, and O</p> Signup and view all the answers

    What is the clinical importance of the ABO blood group system?

    <p>It is the most important system in transfusion medicine</p> Signup and view all the answers

    Which phenotype results from the genotype O/O in the ABO blood group system?

    <p>O</p> Signup and view all the answers

    How many blood group systems genes have been identified as of 2021 according to ISBT?

    <p>43</p> Signup and view all the answers

    Who described the ABO blood group system in 1901?

    <p>Karl Landsteiner</p> Signup and view all the answers

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