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单词 cistron
释义

Definition of cistron in English:

cistron

noun ˈsɪstrɒnˈsisträn
Biochemistry
  • A section of a DNA or RNA molecule that codes for a specific polypeptide in protein synthesis.

    Example sentencesExamples
    • Almost all eukaryotes have multiple copies of their nuclear ribosomal RNA cistrons, arranged in a long tandem array.
    • We find that full function of the endogenous rDNA locus depends not merely on the presence of the rDNA cistrons but also on chromosomal context.
    • Benzer called this unit the ‘cistron’; molecular biologists came to view the cistron as the nucleotide sequence encoding a single polypeptide.
    • The estimate was defined at the scale of cistrons so as to exclude the possibility of recombination.
    • Molecular evolution of the rDNA cistron in these plants typically follows the same trajectory.

Origin

1950s: from cis- (sense 3) + trans- (because of the possibility of two genes being on the same or different chromosomes) + -on.

 
 

Definition of cistron in US English:

cistron

nounˈsisträn
Biochemistry
  • A section of a DNA or RNA molecule that codes for a specific polypeptide in protein synthesis.

    Example sentencesExamples
    • Molecular evolution of the rDNA cistron in these plants typically follows the same trajectory.
    • Benzer called this unit the ‘cistron’; molecular biologists came to view the cistron as the nucleotide sequence encoding a single polypeptide.
    • We find that full function of the endogenous rDNA locus depends not merely on the presence of the rDNA cistrons but also on chromosomal context.
    • The estimate was defined at the scale of cistrons so as to exclude the possibility of recombination.
    • Almost all eukaryotes have multiple copies of their nuclear ribosomal RNA cistrons, arranged in a long tandem array.

Origin

1950s: from cis- (sense 3) + trans- (because of the possibility of two genes being on the same or different chromosomes) + -on.

 
 
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更新时间:2024/9/22 14:25:47