Behavior of polytene chromosomes "in vitro".
D000818:Animals; D002875:Chromosomes / Q000378:metabolism*; D003470:Culture Media; D046508:Culture Techniques; D004261:DNA Replication; D004175:Diptera; D012333:RNA, Messenger / Q000096:biosynthesis; D012469:Salivary Glands / Q000166:cytology; D013936:Thymidine / Q000378:metabolism; D014316:Tritium; D014529:Uridine / Q000378:metabolism
D003470:Culture Media; D012333:RNA, Messenger; D014316:Tritium; D013936:Thymidine; D014529:Uridine