Chapter 42. Lab XI-3 Extract, Isolate, and Visualize DNA

Equipment and Materials

You’ll need the following items to complete this lab session. (The standard kit for this book, available from, includes the items listed in the first group.)

Materials from Kit

  • Goggles

  • Beaker, 100 mL

  • Beaker, 250 mL

  • Centrifuge tubes, 15 mL

  • Centrifuge tubes, 50 mL

  • Coverslips

  • Methylene blue stain

  • Microscope slides (flat)

  • Papain powder

  • Pipettes

  • Stirring rod

  • Test tubes

  • Test tube rack

Materials you Provide

  • Gloves

  • Alcohol (see text)

  • Cheesecloth (or muslin, etc.)

  • Chopsticks, disposable wooden (optional)

  • Dishwashing liquid (Dawn or similar)

  • Freezer

  • Microscope

  • Saucer

  • Table salt

  • Teaspoon

  • Toothpicks

  • Specimens: raw and cooked ground beef

  • Specimens: vegetables (tomato paste, ...

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