Codon meaning

kō'dŏn'
A sequence of three adjacent nucleotides constituting the genetic code that determines the insertion of a specific amino acid in a polypeptide chain during protein synthesis or the signal to stop protein synthesis.
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A small group of chemical units, consisting of a sequence of three nucleotides, that codes the incorporation of a specific small group of amino acids into a protein molecule during the synthesis of the protein; codons are present in DNA and RNA.
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A sequence of three adjacent nucleotides constituting the genetic code that determines the insertion of a specific amino acid in a polypeptide chain during protein synthesis or the signal to stop protein synthesis.
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A sequence of three adjacent nucleotides on a strand of a nucleic acid (such as DNA) that constitutes the genetic code for a specific amino acid that is to be added to a polypeptide chain during protein synthesis. Some amino acids are coded for by more than one codon, and some codons do not signal a particular amino acid but rather signal a stop to protein synthesis.
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(biochemistry) A sequence of three adjacent nucleotides, which encode for a specific amino acid during protein synthesis, or translation. Three special codons, called "stop codons," signal protein synthesis to terminate.
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Origin of codon

  • cod(e) –on
    From American Heritage Dictionary of the English Language, 5th Edition