title: Probing gene activity in Drosophila embryos.
mesh_terms: D000818:Animals; D003001:Cloning, Molecular; D004247:DNA / Q000235:genetics; D004330:Drosophila / Q000196:embryology* / Q000235:genetics; D005796:Genes; D009154:Mutation; D010641:Phenotype; D012313:RNA / Q000235:genetics; D012333:RNA, Messenger / Q000235:genetics
chemical_list: D012333:RNA, Messenger; D012313:RNA; D004247:DNA