DNA Extraction Techniques Quiz

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Questions and Answers

Which of the following is the primary purpose of DNA extraction?

  • To diagnose diseases and genetic disorders (correct)
  • To precipitate proteins
  • To sequence genomes
  • To break open cells or viruses

What is the role of a protease in DNA extraction?

  • To degrade DNA-associated proteins (correct)
  • To precipitate proteins
  • To break open cells or viruses
  • To sequence genomes

Which salt is commonly used to aid in the precipitation of proteins during DNA extraction?

  • Ammonium chloride (correct)
  • Sodium hydroxide
  • Potassium sulfate
  • Calcium carbonate

What is the purpose of mixing DNA with cold ethanol or isopropanol during DNA extraction?

<p>To precipitate proteins (B)</p> Signup and view all the answers

How is DNA extraction typically performed?

<p>By sonicating the sample (C)</p> Signup and view all the answers

What is the purpose of DNA extraction in diagnostic processes?

<p>To remove DNA from cells or viruses (A)</p> Signup and view all the answers

How are DNA associated proteins and other cellular proteins degraded during DNA extraction?

<p>By adding a protease (A)</p> Signup and view all the answers

What is the purpose of adding a salt such as ammonium or sodium acetate during DNA extraction?

<p>To precipitate proteins (D)</p> Signup and view all the answers

What is the primary purpose of centrifuging the DNA sample during DNA extraction?

<p>To remove DNA from cells or viruses (A)</p> Signup and view all the answers

What is the role of sonicating the sample during DNA extraction?

<p>To break open the cells containing DNA (A)</p> Signup and view all the answers

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