title: Gene activation in dipteran polytene chromosomes.
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D002467:Cell Nucleus / Q000187:drug effects; D002875:Chromosomes / Q000187:drug effects; D004175:Diptera; D004330:Drosophila; D004440:Ecdysone / Q000096:biosynthesis / Q000494:pharmacology; D005796:Genes; D005815:Genetic Code; D006025:Glycosaminoglycans / Q000096:biosynthesis; D007814:Larva; D011188:Potassium / Q000494:pharmacology; D011506:Proteins / Q000378:metabolism; D012313:RNA / Q000096:biosynthesis; D012260:Ribonucleases; D012469:Salivary Glands / Q000187:drug effects; D012964:Sodium / Q000494:pharmacology
chemical_list: D006025:Glycosaminoglycans; D011506:Proteins; D004440:Ecdysone; D012313:RNA; D012964:Sodium; D012260:Ribonucleases; D011188:Potassium