A method to determine the number of DNA replicating units in cultured mammalian cells.
D000963:Antimetabolites; D002247:Carbon Isotopes; D002499:Centrifugation, Density Gradient; D046508:Culture Techniques; D004247:DNA / Q000096:biosynthesis*; D006367:HeLa Cells; D008970:Molecular Weight; D011874:Radiometry; D014316:Tritium; D014461:Ultracentrifugation
D000963:Antimetabolites; D002247:Carbon Isotopes; D014316:Tritium; D004247:DNA