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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?

To precipitate proteins (B) Signup and view all the answers

How is DNA extraction typically performed?

By sonicating the sample (C) Signup and view all the answers

What is the purpose of DNA extraction in diagnostic processes?

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

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

By adding a protease (A) Signup and view all the answers

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

To precipitate proteins (D) Signup and view all the answers

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

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

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

To break open the cells containing DNA (A) Signup and view all the answers

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