Question

what do restriction enzymes do

Answer 1

Restriction endonucleases cut DNA at specific sites, known as recognition sites, to produces DNA fragments useful for cloning. Restriction enzymes or restriction endonucleases are DNA cutting enzymes found in bacteria. Each restriction enzyme recognizes one or a few restriction sites. When it finds its target sequence, it makes a double stranded cut in the DNA molecule.  

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Answer 2

restriction enzymes

• it is used to cut DNA into smaller fragments.
• Different restriction enzymes recognise and cut different DNA