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Why can phenol-chloroform be used in DNA isolation?

Answer and explanation

Correct answer: To remove proteins and other cellular impurities

During phenol-chloroform extraction, proteins and several other cellular impurities partition into the organic phase, while DNA usually remains in the aqueous phase. Thus, it is used to obtain relatively pure DNA. Restriction enzymes cut DNA; phenol-chloroform does not. Exam tip: Associate phenol-chloroform in DNA isolation with protein removal and purification.

Related tags

Dna IsolationPhenol ChloroformProtein RemovalDna PurificationRecombinant Dna TechnologyIsolation Of DnaProcesses Of Recombinant Dna TechnologyBiotechnology

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