title: Changes in the sedimentation properties of HeLa cell DNA and nucleoprotein during replication.
mesh_terms: D002247:Carbon Isotopes; D002467:Cell Nucleus; D002499:Centrifugation, Density Gradient; D002999:Clone Cells; D046508:Culture Techniques; D004261:DNA Replication; D004273:DNA, Neoplasm / Q000096:biosynthesis* / Q000528:radiation effects; D004492:Edetic Acid; D006367:HeLa Cells / Q000166:cytology / Q000378:metabolism; D006863:Hydrogen-Ion Concentration; D009691:Nucleic Acid Denaturation; D009698:Nucleoproteins / Q000096:biosynthesis*; D011830:Radiation Effects; D013936:Thymidine / Q000378:metabolism; D013997:Time Factors; D014316:Tritium
chemical_list: D002247:Carbon Isotopes; D004273:DNA, Neoplasm; D009698:Nucleoproteins; D014316:Tritium; D004492:Edetic Acid; D013936:Thymidine