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Questions and Answers
What is the only blood group system not manufactured by RBCs?
What is the only blood group system not manufactured by RBCs?
Lewis System
Which blood group system's antigens act as receptors for Helicobacter pylori?
Which blood group system's antigens act as receptors for Helicobacter pylori?
Lewis System
What is the substance that is influenced by the Secretor gene in the Lewis System?
What is the substance that is influenced by the Secretor gene in the Lewis System?
Lewis antigen expression in RBCs and secretions
Describe the developmental sequence of the Lewis antigen from Le(a-b-) to Le(a-b+).
Describe the developmental sequence of the Lewis antigen from Le(a-b-) to Le(a-b+).
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In the Lewis System, what phenotypes are included?
In the Lewis System, what phenotypes are included?
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When is the Le b antigen present in an individual?
When is the Le b antigen present in an individual?
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What is the association of anti-I autoantibody?
What is the association of anti-I autoantibody?
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Which infection is associated with the presence of anti-i autoantibody?
Which infection is associated with the presence of anti-i autoantibody?
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How can anti-P1 antibody be neutralized?
How can anti-P1 antibody be neutralized?
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What is the association of Anti-Tja (Anti-PP1Pk) autoantibody?
What is the association of Anti-Tja (Anti-PP1Pk) autoantibody?
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Which disease is associated with autoanti-P autoantibody?
Which disease is associated with autoanti-P autoantibody?
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What is the receptor for Parvovirus B19 on the blood group system?
What is the receptor for Parvovirus B19 on the blood group system?
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What conditions can influence changes in Lewis Phenotype?
What conditions can influence changes in Lewis Phenotype?
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What type of antibodies are Lewis antibodies and why are they not clinically significant?
What type of antibodies are Lewis antibodies and why are they not clinically significant?
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Where are MN antigens found, and how do M and N antigens differ?
Where are MN antigens found, and how do M and N antigens differ?
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What treatment destroys MN antigens, and what is the nature of Anti-M antibodies?
What treatment destroys MN antigens, and what is the nature of Anti-M antibodies?
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Where are Ss antigens found, and what is the nature of Anti-N antibodies?
Where are Ss antigens found, and what is the nature of Anti-N antibodies?
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What does the U phenotype represent, and who typically forms anti-U antibodies?
What does the U phenotype represent, and who typically forms anti-U antibodies?
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What is the genetic basis of the McLeod phenotype in the Kell blood group system?
What is the genetic basis of the McLeod phenotype in the Kell blood group system?
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Which population is associated with the Duffy null (Fy a-b-) phenotype?
Which population is associated with the Duffy null (Fy a-b-) phenotype?
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What enzyme deficiency is seen in patients with the McLeod phenotype?
What enzyme deficiency is seen in patients with the McLeod phenotype?
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Why is the Duffy null (Fy a-b-) phenotype associated with resistance against Plasmodium vivax infection?
Why is the Duffy null (Fy a-b-) phenotype associated with resistance against Plasmodium vivax infection?
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What is the main reason why Kidd antibodies cause Delayed Hemolytic Transfusion Reaction (DHTR)?
What is the main reason why Kidd antibodies cause Delayed Hemolytic Transfusion Reaction (DHTR)?
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Which RBC phenotype resists lysis in 2M urea in the Kidd blood group system?
Which RBC phenotype resists lysis in 2M urea in the Kidd blood group system?
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What is the name of the blood group system that was named from the misinterpretation of the blood donor's name, Luteran?
What is the name of the blood group system that was named from the misinterpretation of the blood donor's name, Luteran?
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Where are the Diego blood group system antigens located?
Where are the Diego blood group system antigens located?
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What results from mutations in the AE-1 protein?
What results from mutations in the AE-1 protein?
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Which blood group system antigens are expressed by the RBC adhesion protein ERMAP in humans?
Which blood group system antigens are expressed by the RBC adhesion protein ERMAP in humans?
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What is the thermal optimum for Anti-Lua antibody?
What is the thermal optimum for Anti-Lua antibody?
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What type of gene leads to Lu(a-b-) phenotype?
What type of gene leads to Lu(a-b-) phenotype?
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