title: Theories of ageing: cellular aspects.
mesh_terms: D000375:Aging; D000818:Animals; D002454:Cell Differentiation; D002462:Cell Membrane / Q000201:enzymology; D002468:Cell Physiological Phenomena; D004247:DNA; D012321:DNA-Directed RNA Polymerases; D005815:Genetic Code; D006801:Humans; D014158:Transcription, Genetic
chemical_list: D004247:DNA; D012321:DNA-Directed RNA Polymerases