Sequential gene activation by ecdysone in polytene chromosomes of Drosophila melanogaster. I. Dependence upon ecdysone concentration.
D000818:Animals; D002875:Chromosomes / Q000187:drug effects*; D004305:Dose-Response Relationship, Drug; D004331:Drosophila melanogaster / Q000166:cytology*; D004440:Ecdysone / Q000494:pharmacology*; D004794:Enzyme Repression / Q000187:drug effects; D005796:Genes / Q000187:drug effects*; D066298:In Vitro Techniques; D007814:Larva / Q000166:cytology; D012469:Salivary Glands / Q000166:cytology*
D004440:Ecdysone