title: Requirements for DNA replication preceding cell division in Tetrahymena pyriformis.
mesh_terms: D000818:Animals; D002247:Carbon Isotopes; D002455:Cell Division; D002499:Centrifugation, Density Gradient; D004261:DNA Replication / Q000187:drug effects; D006358:Hot Temperature; D008727:Methotrexate / Q000494:pharmacology; D013769:Tetrahymena pyriformis / Q000187:drug effects / Q000254:growth & development* / Q000378:metabolism; D013936:Thymidine / Q000494:pharmacology; D014529:Uridine / Q000494:pharmacology
chemical_list: D002247:Carbon Isotopes; D013936:Thymidine; D014529:Uridine; D008727:Methotrexate