Nucleases waxaa loo yaqaanaa exonucleases, halka endonucleases ay ka go'an yihiin gudaha xargaha. Nucleases-ka ugu badan ee loo isticmaalo bayoolajiyada molecular-ka waa xaddidaadda endonucleases, oo go'a DNA-da taxanaha gaarka ah. Tusaale ahaan, enzyme-ka EcoRV ee bidixda lagu muujiyey wuxuu aqoonsan yahay taxanaha 6-saldhig 5′-GATC-3′ oo wuxuu goynayaa khadka toosan. Dabeecadda, enzymes-kaani waxay ka ilaaliyaan bakteeriyada infekshanka phage iyagoo dheefshiidaya DNA-da phage marka ay galaan unugyada bakteeriyada, oo qayb ka ah nidaamka xaddidaadda. Teknolojiyada taxanaha, nucleases-kan gaarka ah waxaa loo isticmaalaa DNA-da molecular-ka iyo farta farta DNA-da. Su'aal: Waa maxay nooca macromoleases?
enzymyada