Working in groups, students cooperate to extract DNA from living cells.
After the material is cut into small pieces, it is heated with salt, water, and shampoo. Each of these materials helps to extract the DNA from the cells so it can be extracted.
After the material is heated, it must be cooled.
Once cooled, the mixture must be filtered.
After filtering the mixtures, the liquid that will be used for the extraction remains. From the left ist he filtered liquid from the kiwi, lettuce, and onion mixtures.
After adding ice-cold alcohol, the DNA fragments separate from the other liquid in the mixture. The DNA is found near the top of the tube, suspended in the clear alcohol layer.
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