Epigenetics vs the fossil record
Evolution of stem cells traced in study of fossilized rodent teeth Excerpt: “the mechanism that allowed the shift from longer teeth to continuously growing ones… probably linked to a regulatory element of DNA that activates the transcription of a gene or genes.” My comment: Nutrient-dependent pheromone-controlled fixation of RNA-mediated amino acid substitutions links the epigenetic … Epigenetics vs the fossil record
