title: Quantitative regulation.
mesh_terms: D000818:Animals; D001789:Blood Group Antigens / Q000235:genetics*; D002454:Cell Differentiation; D005796:Genes; D006657:Histones / Q000235:genetics; D007527:Isoenzymes; D007770:L-Lactate Dehydrogenase / Q000235:genetics*; D009928:Organ Specificity; D012333:RNA, Messenger / Q000235:genetics; D012617:Sea Urchins; D014158:Transcription, Genetic; D014981:Xenopus
chemical_list: D001789:Blood Group Antigens; D006657:Histones; D007527:Isoenzymes; D012333:RNA, Messenger; D007770:L-Lactate Dehydrogenase