Summary:

  • The genetic code changes the information embedded in DNA and RNA into ordered amino acids and proteins.
  • Each codon stands for (encodes) one amino acid, unless it codes for a start or stop signal.
  • There are 64 possible codons, more than enough to code for the 20 amino acids.
  • Most amino acids are encoded by more than one codon.
  • The genetic code is universal, unambiguous, and redundant.
  • It can be used to translate the following segment of RNA into a sequence of five amino acids: GUC-GCG-CAU-AGC-AAG.
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