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How is result reproducibility increased in DNA isolation?

Answer and explanation

Correct answer: By using a standard protocol and keeping good records

Reproducibility means that the same procedure can be repeated and produce comparable results. In DNA isolation, a standard protocol fixes important variables such as sample mass, reagent volumes, incubation time, temperature, mixing, centrifugation, and elution volume. Clear records add the exact lot numbers, deviations, observations, and final measurements, allowing another person—or the same researcher later—to identify what was done. Quality controls and consistent equipment handling further improve comparison between runs. Thus option A is correct. Random steps change uncontrolled variables, unlabeled tubes create identification errors, and contamination reduces reliability rather than improving it.

Related tags

ReproducibilityStandard ProtocolLaboratory RecordsIsolation Of DnaProcesses Of Recombinant Dna TechnologyBiotechnologyClass 11 Mcq

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