Question

why do bacteria have restriction enzymes

Answer 1

Restriction enzymes are part of the restriction-modification system; bacteria and Archea developed thus system as a defense against viruses.Bacterial methylases protect the host DNA by methylation in the sequences the restriction enzymes recognize, and therestriction enzymes fail to cleave methylated DNA.


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Answer 2

hey mate ^_^

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Restriction enzymes are part of the restriction-modification system; bacteria and Archea developed thus system as a defense against viruses. Bacterial methylases protect the host DNA by methylation in the sequences the restriction enzymes recognize, and the restriction enzymes fail to cleave methylated DNA.

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