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nonrestrictive clause
nonreturn
nonreturn valve
nonrun
nonrunner
nonsalable
nonscheduled
nonsense
nonsense mutation
nonsense verse
nonsense word
nonsensical
nonsked
nonslip
nonsmoker
nonsmoking
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nonsense mutation

non·sense mu·ta·tion (plural non·sense mu·ta·tions)


noun 
Definition:
 
DNA change that alters a gene: a mutation that turns a base specifying an amino acid into one indicating the end of a gene. It leads to the formation of a gene that may produce a protein in which amino acids are missing.

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