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Why is centrifugation useful in DNA isolation?

Answer and explanation

Correct answer: To separate components of a sample based on differences in density

Centrifugation spins a sample at high speed so that components with different densities separate. During DNA isolation, cellular debris or a precipitate may form a pellet at the bottom, while the liquid supernatant can be removed, helping in DNA purification. Staining a membrane is associated with microscopy methods, not centrifugation. Exam tip: the pellet is the material settled at the bottom, whereas the supernatant is the liquid above it.

Related tags

Dna IsolationCentrifugationDensity SeparationPelletSupernatantRecombinant Dna TechnologyIsolation Of DnaProcesses Of Recombinant Dna Technology

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