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What is the benefit of blue-light compatible stain in cloning fragment recovery?

Answer and explanation

Correct answer: UV damage risk can decrease

The governing concept is protection of DNA integrity during visualization before recovery. Traditional fluorescent DNA stains are often viewed under ultraviolet light, but UV exposure can damage DNA by causing lesions or strand-related injury. Such damage may reduce the efficiency of downstream ligation, cloning, amplification, or transformation. A stain compatible with blue-light visualization allows the desired band to be located without relying on UV, so the recovered DNA may retain better biological activity. It does not convert DNA into protein, methylate an enzyme, or prevent the gel from running. Blue light is not an absolute guarantee of zero damage, but it can reduce UV-associated risk; therefore option A is the best answer.

Related tags

Blue Light StainDna RecoveryCloningCloning VectorsPrinciples Of BiotechnologyBiotechnologyClass 11 Mcq

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