Codon chart: the standard genetic code table

An example figure from the DNA and Protein Synthesis generator.

A square codon chart with the first base U, C, A, G down the left, the second base across the top and the third base down the right, each of the 16 cells listing four codons with their amino acids, AUG Met (Start) and the stop codons UAA, UAG and UGA in bold on gray
The standard genetic code as a square table. Find a codon’s first base down the left, its second across the top and its third down the right of the cell. Each of the 64 codons is listed with the amino acid it codes for in three-letter code; AUG, methionine, is the start codon, and UAA, UAG and UGA are the stop codons.

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Answer key

  • Start codon: AUG (Met)
  • Stop codons: UAA, UAG, UGA

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