title: An in vitro assay for the specific induction and regression of puffs in isolated polytene nuclei of Drosophila melanogaster.
mesh_terms: D000818:Animals; D002467:Cell Nucleus / Q000378:metabolism; D002474:Cell-Free System; D002875:Chromosomes / Q000378:metabolism* / Q000648:ultrastructure; D004331:Drosophila melanogaster / Q000235:genetics* / Q000648:ultrastructure; D004440:Ecdysone / Q000494:pharmacology; D005796:Genes; D006358:Hot Temperature; D012469:Salivary Glands / Q000648:ultrastructure; D014158:Transcription, Genetic
chemical_list: D004440:Ecdysone