title: Effect of thymine concentration on the replication velocity of DNA in a thymineless mutant of Escherichia coli.
mesh_terms: D002247:Carbon Isotopes; D003470:Culture Media; D004261:DNA Replication / Q000187:drug effects*; D004926:Escherichia coli / Q000187:drug effects / Q000254:growth & development / Q000378:metabolism*; D005827:Genetics, Microbial; D009154:Mutation; D013268:Stimulation, Chemical; D013941:Thymine / Q000378:metabolism / Q000494:pharmacology*
chemical_list: D002247:Carbon Isotopes; D003470:Culture Media; D013941:Thymine