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词汇 codon
释义

Definition of codon in English:

codon

noun ˈkəʊdɒnˈkoʊdɑn
Biochemistry
  • A sequence of three nucleotides which together form a unit of genetic code in a DNA or RNA molecule.

    〔生化〕密码子

    Example sentencesExamples
    • Biochemistry may explain why most of the exceptions to the genetic code involve stop codons.
    • Due to the redundant nature of codons, the genetic code shows a significant level of neutrality.
    • In effect, the DNA blueprint is a succession of code words, each consisting of a set of three nucleotides, known as codons, in the gene.
    • An organism is defined through the set of preferred codons shaping its genome.
    • We split the observable changes in the aligned codons in the two sequences into a number of disjoint groups.

Origin

1960s: from code + -on.

Definition of codon in US English:

codon

nounˈkoʊdɑnˈkōdän
Biochemistry
  • A sequence of three nucleotides which together form a unit of genetic code in a DNA or RNA molecule.

    〔生化〕密码子

    Example sentencesExamples
    • In effect, the DNA blueprint is a succession of code words, each consisting of a set of three nucleotides, known as codons, in the gene.
    • Biochemistry may explain why most of the exceptions to the genetic code involve stop codons.
    • Due to the redundant nature of codons, the genetic code shows a significant level of neutrality.
    • An organism is defined through the set of preferred codons shaping its genome.
    • We split the observable changes in the aligned codons in the two sequences into a number of disjoint groups.

Origin

1960s: from code + -on.

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