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Why is nuclease-free water used in restriction reaction?

Answer and explanation

Correct answer: To prevent unwanted DNA degradation

Nuclease-free water does not contain contaminating nucleases such as DNases. Such enzymes can cut or degrade DNA at unwanted sites and interfere with the restriction digestion result. Therefore, option C is correct because it protects DNA from unwanted degradation. The restriction enzyme itself cuts DNA only at its specific recognition site; water is not used to cut DNA. Exam tip: Use nuclease-free reagents in DNA-based reactions to prevent contamination and DNA damage.

Related tags

Restriction DigestionNuclease-Free WaterDna DegradationDnaseRecombinant Dna TechnologyCutting Of DnaProcesses Of Recombinant Dna TechnologyBiotechnology

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