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What is the natural role of restriction enzymes in bacteria?

Answer and explanation

Correct answer: Defense against foreign DNA by cutting it

Restriction enzymes are part of the bacterial defence system. They recognise and cut incoming foreign DNA, such as bacteriophage DNA, at specific sequences and can thereby prevent infection. Protein folding is performed by chaperone proteins, not restriction enzymes. Exam tip: remember that restriction enzymes cut DNA at specific recognition sites.

Related tags

Restriction EnzymesBacterial DefenceForeign DnaRecombinant Dna TechnologyDna CuttingCutting Of DnaProcesses Of Recombinant Dna TechnologyBiotechnology

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