The basic unit of the genetic code, comprising three-nucleotide sequences of messenger ribonucleic acid (mRNA), each of which is translated into one amino acid in protein synthesis.
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Glossary
Definition:
A group of three nucleotides that specifies addition of one of the 20 amino acids during translation of an mRNA into a polypeptide. Strings of codons form genes and strings of genes form chromosomes. (See Initiation codon, Termination codon)
a sequence of three bases on the DNA molecule that codes a specific amino acid or other genetic function.
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