How To Purify DNA From Cell Extract?

Bacterial cell extract has good quantities of RNA and protein. Several methods can be used to purify DNA from such a mixture. Treating the mixture with reagents that degrade the contaminants, leaving behind a pure solution of DNA is one method. Removing contaminants by organic extraction and enzyme digestion. Another approach is the usage of ion-exchange chromatography for the separation of the mixture into different components. As a result, DNA is eliminated from RNA and proteins in the extract.

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