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One of the main themes of evolution is the belief that certain types of DNA sequences freely mutate and develop new functions that allow for new creatures to evolve. This mostly mythical concept was applied to the protein-coding regions of genes, but in recent years this idea was discredited by the discovery of multiple codes imbedded in the same sequence—because the disruption of these codes is typically harmful, mutations are not tolerated. And now another critical imbedded code was discovered, further discrediting the idea of pervasive mutable DNA in genes.To read the rest, click on "Codon Degeneracy Discredited Again".
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