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Codon: A set of any three adjacent bases in the DNA or RNA. There are 64 different codons of which 61 specify the incorporation of an amino acid into a polypeptide chain while the remaining three are stop codons that signal the end of a polypeptide.
For example, the DNA codon ACG via its complementary RNA codon CGU specifies the amino acid arginine. For another example, the DNA codon TAC via its complementary RNA codon GUA specifies the amino acid valine.
The three stop codons are UAA, UAG, and UGA. They are also called termination codons or nonsense codons.
A = adenine; C = cytosine; G = guanine; U = uracil; T = thymine.
Library > Literature & Language > Dictionary ( kÅ ' dÅn ' ) n. A sequence of three adjacent nucleotides constituting the genetic code that determines the insertion ...
codon /co·don/ (ko´don) a series of three adjacent bases in one polynucleotide chain of a DNA or RNA molecule, which codes for a specific amino acid.
noun Genetics . a triplet of adjacent nucleotides in the messenger RNA chain that codes for a specific amino acid in the synthesis of a protein molecule. Also called ...
The genetic code consists of 64 triplets of nucleotides. These triplets are called codons.With three exceptions, each codon encodes for one of the 20 amino acids used in ...
co·don (k d n) n. A sequence of three adjacent nucleotides constituting the genetic code that determines the insertion of a specific amino acid in a polypeptide ...