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Why is gel documentation done after restriction digestion?

Answer and explanation

Correct answer: To record the DNA band pattern

Gel documentation is the process of capturing and preserving an image of DNA bands after electrophoresis. Restriction digestion cuts DNA at specific recognition sites, and the resulting fragments separate according to size in the gel. Recording the band pattern allows a researcher to compare the observed fragments with the expected restriction map, check whether digestion was complete, and support clone or insert verification. Therefore, option A is correct. Option B describes the earlier enzymatic digestion step, not documentation; option C is unrelated to analysis; and option D concerns solution preparation rather than recording experimental results. The image also provides a durable record for reports, comparison, and laboratory notebooks.

Related tags

Gel DocumentationRestriction DigestionDna BandsGel ElectrophoresisCutting Of DnaProcesses Of Recombinant Dna TechnologyBiotechnologyClass 11 Mcq

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