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What can the white thread-like material in DNA isolation be?

Answer and explanation

Correct answer: Precipitated DNA

When alcohol is added, DNA becomes less soluble and may appear as a white, thread-like precipitate. Therefore, the material is precipitated DNA. Water vapour is gaseous and does not form such thread-like precipitates. Exam tip: Cold alcohol is commonly used to precipitate DNA during isolation.

Related tags

Dna IsolationPrecipitated DnaAlcohol PrecipitationRecombinant Dna TechnologyMolecular BiologyIsolation Of DnaProcesses Of Recombinant Dna TechnologyBiotechnology

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