title: Ultrastructure of the macronuclear anlage in Stylonychia mytilus.
mesh_terms: D000818:Animals; D002466:Cell Nucleolus; D002467:Cell Nucleus; D002843:Chromatin; D002875:Chromosomes; D016798:Ciliophora / Q000166:cytology*; D008722:Methods; D008854:Microscopy, Electron; D008858:Microscopy, Phase-Contrast; D013997:Time Factors
chemical_list: D002843:Chromatin