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What is the best outcome of directional cloning?

Answer and explanation

Correct answer: The chance of the insert joining in the correct orientation increases

Directional cloning uses two different, incompatible ends on the vector and insert. Each end can pair only with its complementary partner, so the insert is strongly guided into one orientation rather than being able to enter randomly in either direction. This is especially useful when a gene must be expressed from a promoter in the correct 5′-to-3′ direction. It does not guarantee that every colony is correct, because incomplete digestion, recombination, or technical errors can still occur; verification by colony PCR, restriction analysis, or sequencing remains important. Option A is therefore the best outcome. DNA does not become protein during cloning, enzymes are not the intended product, and the gel remains a useful analytical tool.

Related tags

Directional CloningInsert OrientationRestriction EndsInsertionProcesses Of Recombinant Dna TechnologyBiotechnologyClass 11 Mcq

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