title: DNA replication sites within nuclei of mammalian cells.
mesh_terms: D000818:Animals; D001345:Autoradiography; D002458:Cell Fractionation; D002460:Cell Line; D002467:Cell Nucleus / Q000378:metabolism*; D002843:Chromatin / Q000096:biosynthesis; D003078:Colchicine / Q000494:pharmacology; D006224:Cricetinae; D004261:DNA Replication; D005260:Female; D006367:HeLa Cells / Q000378:metabolism; D006570:Heterochromatin / Q000096:biosynthesis; D006801:Humans; D008854:Microscopy, Electron; D008938:Mitosis / Q000187:drug effects; D013936:Thymidine / Q000378:metabolism; D014316:Tritium
chemical_list: D002843:Chromatin; D006570:Heterochromatin; D014316:Tritium; D003078:Colchicine; D013936:Thymidine