DNA Visualization and Sickle Cell Anemia Quiz
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Questions and Answers

What is ethidium bromide used for in DNA visualization?

  • It allows detection of DNA fragments in gels (correct)
  • It is a point mutation in the beta-globin subunit
  • It intercalates between the base pairs of the double helix
  • It causes normal haemoglobin to be clumped

    • What is the effect of sickle cell anemia on haemoglobin?

  • It causes haemoglobin to be produced in excess
  • It causes haemoglobin to be unable to bind to oxygen
  • It causes normal haemoglobin to be clumped (correct)
  • It causes haemoglobin to be broken down too quickly

    • What is the mechanism of action of ethidium bromide in DNA visualization?

  • It binds to the sugar-phosphate backbone of DNA
  • It intercalates between the base pairs of the double helix (correct)
  • It causes DNA to break apart into fragments
  • It catalyzes the replication of DNA

    • What is the cause of sickle cell anemia?

    <p>A point mutation in the beta-globin subunit</p> Signup and view all the answers

    How is ethidium bromide detected in DNA visualization?

    <p>By illuminating with UV light</p> Signup and view all the answers

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