title: Studies on the DNA replication in heat synchronized Tetrahymena pyriformis.
mesh_terms: D002499:Centrifugation, Density Gradient; D004261:DNA Replication; D006358:Hot Temperature; D010759:Phosphorus Isotopes; D013768:Tetrahymena / Q000378:metabolism*; D014316:Tritium
chemical_list: D010759:Phosphorus Isotopes; D014316:Tritium