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barry barry
wrote...
Posts: 11630
12 years ago
Compare and contrast RNA interference (RNAi) and restriction endonucleases.
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wrote...
12 years ago
Eukaryotes lack restriction endonuclease systems, but Archaea and Bacteria both use these to defend against foreign DNA by cleaving it apart. RNAi is also a mechanism to defend again foreign nucleic acids but unlike restriction endonucleases, RNAi targets foreign RNA (e.g., RNA viruses) and cleaves them. The RNAi mechanism is exclusive to the Eukarya domain.
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