title: Isolation of a DNA fraction from Ehrlich ascites tumour cells containing the putative origin of replication.
mesh_terms: D000818:Animals; D002286:Carcinoma, Ehrlich Tumor / Q000032:analysis* / Q000378:metabolism; D002478:Cells, Cultured; D003432:Cross-Linking Reagents; D004260:DNA Repair; D004261:DNA Replication; D004273:DNA, Neoplasm / Q000096:biosynthesis / Q000302:isolation & purification*; D004591:Electrophoresis, Polyacrylamide Gel; D007700:Kinetics; D012093:Replicon; D013936:Thymidine / Q000378:metabolism; D014307:Trioxsalen / Q000494:pharmacology
chemical_list: D003432:Cross-Linking Reagents; D004273:DNA, Neoplasm; D013936:Thymidine; D014307:Trioxsalen