2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/83558The enzyme Glyceraldehyde-3-Phosphate Dehydrogenase (GAPDH) catalyses the decomposition of glucose. The gene that produces the GAPDH is therefore present in a wide class of organisms. We show that for this gene the average value of the fluctuations in nucleotide distribution in the codons, normalized to strand bias, provides a reasonable measure of how the gene has evolved in time.22 pages, 3 figuresBiological PhysicsData Analysis, Statistics and ProbabilityQuantitative Biologytext