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DNA Extraction in Real

Have you ever seen your DNA

What is DNA?





How to preserve your DNA ?

Materials Required - 


 PROCEDURE 

1. Take a paper cup, fill it with water. Now add one tablespoon of salt into the water and give it a good mix. (Make sure to completely dissolve the salt into the water)

 

2. Now here is the fun part. Take the salt solution in your mouth and gargle it for one full minute. (Make sure not to drink it accidentally!)

 

3. Spit out the gargled salt solution into the clear/transparent glass.

 

4. Now add half a teaspoon of liquid dishwasher soap into the salt solution and mix well. Mix it gently so that NO BUBBLES are formed. Keep it aside.

 

5. Carefully pour the chilled rubbing alcohol into another paper cup. Tilt your glass approximately 45 degrees and gently pour the rubbing alcohol. Since the alcohol is less dense, it will sit atop the salt and soap solution.

 

6. In approximately three to four minutes, you would begin to see a milky white thread, possibly interspersed with bubbles, appearing between the solution and the alcohol. That is your DNA – the code of life.

 

7. Wait for a couple of minutes for the DNA to be suspended in the alcohol layer.

 

8. To save it, carefully scrape the DNA into a small container. Add a few drops of alcohol and seal it. Store it in a freezer and you may preserve your DNA forever!



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Content from: Lab manual

 

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