DNA Manipulation Quiz
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Questions and Answers

Which of the following best describes restriction enzymes?

  • Proteins that recognize specific base sequences and cut only one strand of DNA at specific sites
  • Proteins that recognize specific base sequences and bind to them without cutting the DNA
  • Proteins that recognize specific base sequences and cut both strands of DNA at specific sites (correct)
  • Proteins that recognize specific base sequences and unwind the DNA
  • What is the purpose of methylation in bacteria?

  • To degrade foreign DNA
  • To repair DNA damage caused by restriction enzymes
  • To protect its own DNA from restriction enzymes (correct)
  • To enhance the activity of restriction enzymes
  • What is the function of restriction enzymes in bacteria?

  • To facilitate DNA replication
  • To repair DNA damage
  • To provide a defense mechanism against invading viruses (correct)
  • To regulate gene expression
  • What is the significance of a palindromic sequence in DNA?

    <p>It is a sequence that is identical on both strands of DNA</p> Signup and view all the answers

    What is the role of restriction maps in manipulating DNA?

    <p>To identify the location of restriction sites in a DNA molecule</p> Signup and view all the answers

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