title: Time average in chemical reaction and its application to the biological system.
mesh_terms: D012321:DNA-Directed RNA Polymerases / Q000378:metabolism; D005809:Genes, Regulator; D008954:Models, Biological; D009876:Operon; D012333:RNA, Messenger; D013997:Time Factors; D014158:Transcription, Genetic
chemical_list: D012333:RNA, Messenger; D012321:DNA-Directed RNA Polymerases