DNA Extraction

• Why is detergent used in DNA extraction?

  It breaks down cell membranes
• What role does salt play in the process of extracting DNA?

  It helps to stabilize the DNA
• Why is alcohol added during DNA extraction?

  To precipitate the DNA
• What is the first step in DNA extraction?

  • Breaking open the cells
• What substance is used to break down the cell membranes?

  • Detergent
• Which of the following causes DNA to become visible during extraction?

  • Alcohol
• Why is cold ethanol or alcohol used in DNA extraction?

  • It helps DNA to clump and become visible
• Which of these is not typically part of the DNA extraction process?

  • Heating the sample to 100°C