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What is the common exam identity of an enzyme like EcoRI?

Answer and explanation

Correct answer: Restriction endonuclease

EcoRI is a restriction endonuclease. It recognises a specific DNA recognition sequence, such as GAATTC, and cuts both DNA strands, typically producing sticky ends. DNA ligase is a close distractor because it acts on DNA too, but it joins cut DNA fragments rather than cutting them. Exam tip: Names such as EcoRI, HindII and BamHI indicate restriction enzymes.

Related tags

EcoriRestriction EndonucleaseRecombinant Dna TechnologyDna CuttingSticky EndsCutting Of DnaProcesses Of Recombinant Dna TechnologyBiotechnology

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