Give example of molecular scissors?

restriction endonuclease..

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examples of molecular scissors are:Hind II,EcoRI etc.

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hind II and ecori
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Restriction endonucleases are of 3 types i.e type 1,2 and 3 and among which only type 2 is active one. Exqmples are : Eco R I, Eco R II, Bam H I, Hae III, Hin d III, Alu I etc
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(a) Restriction endonucleases are called molecular scissors as they cut the DNA segments at particular locations. Example: EcoRI. (b) Restriction enzymes cut the DNA strands some distance away from the centre of the palindromic sites, but between the same two bases on the opposite strands.
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