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Why is labelling important in a competent host experiment?

Answer and explanation

Correct answer: To prevent sample mix-up

Labelling identifies each tube, plate, control, DNA preparation, antibiotic condition, and incubation group throughout an experiment. Transformation workflows often contain several samples that look identical, so an unlabelled or incorrectly labelled plate can lead to selecting the wrong colony, confusing a control with a test sample, or assigning a result to the wrong plasmid. Option A is correct because accurate labels preserve sample identity and make the experiment traceable and reproducible. Labelling does not digest DNA, create antibiotics, or convert a host into water; those options are unrelated to laboratory record-keeping.

Related tags

Sample LabellingCompetent HostLab PracticePrinciples Of BiotechnologyBiotechnologyClass 11 Mcq

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