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TERMINATION CODONS

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As noted above, not all codons stipulate an amino acid; of the 64 possible nucleotide combinations, only 61 actually encode an amino acid. The other three (UAA, UAG, and UGA) are termination (or nonsense) codons in most organisms. The termination codons are usually used to terminate translation at the end of genes (see “Translation Termination” above).

Snyder and Champness Molecular Genetics of Bacteria

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