Definition of "nucleases" [nucleases]

• Plural form of nuclease. (noun)

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• "One of the difficulties in working with potentially therapeutic siRNA molecules is that they are highly unstable, particularly in the presence of even trace levels of enzymes called nucleases that break down nucleic acids."
• "Polyadenylation is mediated by a sizeable complex that includes various RNA-binding proteins, nucleases, and other interesting activities."
• "Every virus-resistant person has two mutant copies of a gene called CCR5, and a new biotech tool called zinc finger nucleases can give anyone that mutation."