Electron microscopy of an induced "lampbrush stage" of the polytene chromosome.
D000818:Animals; D002875:Chromosomes; D004330:Drosophila; D008854:Microscopy, Electron; D012469:Salivary Glands; D012972:Sodium Hydroxide; D014508:Urea
D012972:Sodium Hydroxide; D014508:Urea