title: Distribution of DNA in dividing spinach chloroplasts.
mesh_terms: D001345:Autoradiography; D002736:Chloroplasts / Q000032:analysis / Q000378:metabolism* / Q000502:physiology; D004247:DNA / Q000032:analysis / Q000096:biosynthesis*; D010944:Plants / Q000648:ultrastructure; D013936:Thymidine / Q000378:metabolism; D014316:Tritium
chemical_list: D014316:Tritium; D004247:DNA; D013936:Thymidine