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What is the benefit of fresh tissue in DNA isolation?

Answer and explanation

Correct answer: It can yield more intact DNA

In fresh tissue, DNA has usually undergone less degradation by nucleases and other breakdown processes. Therefore, it can yield longer, less fragmented, more intact DNA. Ethanol is used to precipitate DNA; tissue does not precipitate ethanol. Exam tip: Fresh or properly preserved samples generally give better-quality DNA.

Related tags

Dna IsolationFresh TissueIntact DnaDna DegradationNucleasesSample QualityIsolation Of DnaProcesses Of Recombinant Dna Technology

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