View Full Version : DNA Unraveling

07-21-2011, 03:44 PM
Hi All

I saw this done on TV.

Clean your mouth then wait a while...take a mouthful of salt solution and swill it around, spit into a clean vessel.

Add a little detergent to the vessel and stir with a clean spoon for about 5 mins.

Pour some alcohol into a clean glass...they suggested rubbing alcohol...I only had some Raspberry food flavouring...which is almost pure alcohol anyway :) dont all rush to the shops!

Take a teaspoon full of the salt, detergent and saliva mix and place it into the alcohol.

Watch and wait as the DNA unravels...

I didn't take any before pics, but when I did the final mix the solution was pretty clear.

After about 5 mins


Pic from top of glass


After about 10 mins