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What problem can occur if the identity of a DNA sample is lost?

Answer and explanation

Correct answer: The analysis result may be linked to the wrong sample

The governing concept is sample traceability, which connects a measurement to the correct biological source and experimental condition. If a tube is mislabeled, its label is lost, or the records do not identify its origin, a technically valid DNA measurement may be assigned to the wrong individual, tissue, treatment group, or time point. The resulting conclusion can therefore be scientifically or clinically misleading even when extraction and PCR worked properly. Option A is correct. Loss of identity does not purify DNA, automatically improve PCR, or make ethanol disappear. Unique identifiers, clear labels, and contemporaneous records help prevent this serious error.

Related tags

Sample IdentityTraceabilityWrong AnalysisIsolation Of DnaProcesses Of Recombinant Dna TechnologyBiotechnologyClass 11 Mcq

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