T Hemoglobin
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Questions and Answers

Which condition is characterized by the production of significant fetal hemoglobin (hemoglobin F) well into adulthood?

  • Hereditary persistence of fetal hemoglobin (HPFH) (correct)
  • Thalassemia
  • Sickle cell anemia
  • Hemoglobin Gun Hill
  • What is the result of a point mutation in Hbß, leading to a change from Glu to Val at amino acid 6?

  • Thalassemia
  • Hereditary persistence of fetal hemoglobin (HPFH)
  • Hemoglobin Gun Hill
  • Sickle cell anemia (correct)
  • Which condition is associated with the deletion of five amino acids in the β-chains of the abnormal protein?

  • Sickle cell anemia
  • Hb Barts
  • Thalassemia
  • Hemoglobin Gun Hill (correct)
  • What is the characteristic feature of Hb Barts and HbH in alpha-thalassemia?

    <p>(β4) and (γ4)</p> Signup and view all the answers

    In uncontrolled diabetes, what can increase more than twice normal, leading to the generation of more HbA1c than normal?

    <p>Blood glucose level</p> Signup and view all the answers

    What is the result of a point mutation in Hbß, leading to a change from Glu to Val at amino acid 6?

    <p>(microcytic anemia)</p> Signup and view all the answers

    What happens in α thalassemia when one of the 4 gene copies are not expressed?

    <p>leads to increased death</p> Signup and view all the answers

    What are the subunits that form tetramers in beta thalassemia?

    <p>β subunits</p> Signup and view all the answers

    What is associated with a point mutation in Hbß that leads to the formation of Hb C or Hb E?

    <p>Chronic hemolytic anemia</p> Signup and view all the answers

    What results from a mutation or incorrect splicing in beta thalassemia?

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

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