Extract your DNA!


Does saliva contain DNA?
  • Plastic cups
  • Salt
  • Liquid soap
  • Gloves
  • Tissue
  • dropper
  • Food color
  • stirrer
Take the mouthful of water, sloosh around and spit it out in the cup. Add 60 ml more water in it. Add salt and 5 teaspoons of liquid soap and stirr well. Pour in two teaspoons of isopropyl alcohol gently and leave it for sometime and see the lump of your DNA strands inside the solution.