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codon    
密碼子; 碼字

密碼子; 碼字

codon
n 1: a specific sequence of three adjacent nucleotides on a
strand of DNA or RNA that specifies the genetic code
information for synthesizing a particular amino acid

Codon \Co"don\ (k[=o]"d[o^]n), n. (Molecular biology)
a sequence of three nucleotides in a genome or a DNA or
messenger RNA molecule, which specifies the incorporation of
one amino acid or is a stop signal, during the biosynthesis
of proteins. Codons occur within the protein-coding segments
of the DNA or RNA genome of living organisms. The amino acid
sequence of proteins synthesized on ribosomes is thus
determined by the sequence of the nucleotides in the genome.
[PJC]

Note: Outside of coding regions, there is no direct
correspondence of the nucleotide sequence with protein
sequence, and certain signalling functions of nucleic
acids are not specified by three-nucleotide codons.
Certain types of polypeptide synthesized in living
organisms are not synthesized on ribosomes, and the
sequences of these polypeptides do not have a
corresponding nucleotide sequence in the genome.
[PJC]

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英文字典中文字典相關資料:
  • Codon Chart: Table, Amino Acids RNA Wheel Explained
    The genetic code is read in sets of three nucleotides, and this sequence of three DNA or RNA nucleotides is known as a codon Each codon specifies a particular amino acid or acts as a signal to start or stop protein synthesis
  • Codon - National Human Genome Research Institute
    A codon is a DNA or RNA sequence of three nucleotides (a trinucleotide) that forms a unit of genomic information encoding a particular amino acid or signaling the termination of protein synthesis (stop signals)
  • Codon | Definition, Function, Examples | Britannica
    codon, in genetics, any of 64 different sequences of three adjacent nucleotides in DNA that either encodes information for the production of a specific amino acid or serves as a stop signal to terminate translation (protein synthesis)
  • Codon Learning
    Codon Learning is a science courseware developer that supports the practice of evidence-based teaching Our student-centered approach applies active engagement, assessment, inclusivity, and analytics to improve learning outcomes
  • DNA and RNA codon tables - Wikipedia
    ^ Each stop codon has a specific name: UAG is amber, UGA is opal and UAA is ochre,[7] (sometimes for UGA, umber is used instead of opal) [8] In DNA, these stop codons are TAG, TGA, and TAA, respectively
  • What Is a Codon? Definition, Function, and Examples
    A codon is a sequence of three nucleotides (the individual “letters” of DNA or RNA) that represents one specific instruction during protein building Each codon either tells the cell to add a particular amino acid to a growing protein or signals that the protein is complete
  • What Is a Codon in DNA and How Does It Build Proteins?
    A codon is a sequence of three consecutive nucleotide bases that specifies a single amino acid or serves as a regulatory signal DNA and RNA are built from four distinct bases: Adenine, Uracil, Guanine, and Cytosine (A, U, G, C)
  • Codon Chart - Codon Table, mRNA Codon Chart, Amino Acids RNA Wheel . . .
    What is a Codon Chart? A codon chart is described as a key that translates three-nucleotide groups into amino acids, and it is presented usually as a table or circle A codon is formed by three bases (triplet), and it is represented on the chart as combinations like AUG, GCU, UGA, etc
  • CODON Definition Meaning - Merriam-Webster
    The meaning of CODON is a specific sequence of three consecutive nucleotides that is part of the genetic code and that specifies a particular amino acid in a protein or starts or stops protein synthesis —called also triplet
  • GitHub - exaloop codon: A high-performance, zero-overhead, extensible . . .
    Codon is a high-performance Python implementation that compiles to native machine code without any runtime overhead Typical speedups over vanilla Python are on the order of 10-100x or more, on a single thread Codon's performance is typically on par with (and sometimes better than) that of C C++





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