2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/139158A hypothesis of the evolution of the genetic code is proposed, the leading mechanism of which is the nucleotide spontaneous damage leading to AT-enrichment of the genome. The hypothesis accounts for stability of the genetic code towards point mutations, the presence of code dialects, and the symmetry of the genetic code table.Populations and EvolutionBiomoleculestext