It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
NOVA Presents: D.I.Y. Science
How to Extract Your Own DNA
(Image of bottled water, clear dish soap, food coloring, table salt, and 70% isopropyl alcohol)
Step 1: Mix 500 ml drinking water with 1 tbsp salt
Step 2: Stir until salt is dissolved. Then transfer 3 tbsp of salt water into a clear cup.
Step 3: Gargle the salt water for 1 minute.
Step 4: Spit the water back into the cup. Now your cheek cells are suspended in the salt water.
Step 5: Gently stir the salt water with one drop of soap. (Avoid bubbles as much as possible).
Note: Soap breaks down the cell membranes, releasing the DNA.
Step 6: In a separate cup, mix 100 ml isopropyl alcohol and 3 drops of food coloring.
Step 7: Tilt the salt water cup and gently pour the alcohol so that it forms a layer on top (about 2 cm thick).
Step 8: Wait about 2.5 minutes. You should see white clumps and strings forming.
(Image of strings and clumps of DNA)
That's your DNA!