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EcoRI is an e...

Question

EcoRI is an example of which of the following?

A

Exonuclease

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B

Endonuclease

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C

Specific site of restriction endonuclease

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D

RNA polymerase

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Solution

The correct option is C Endonuclease
ECoRI is an endonuclease enzyme isolated from strains of E.coli, and is part of the restriction modification system. In molecular biology it is used as a restriction enzyme. It creates 4 nucleotide sticky ends with 5' end overhangs of AATT.
So, the correct answer is 'Endonuclease'

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