title: NOR and counterstained enhanced fluorescence studies in early embryo (morulae) cells of the pig.
mesh_terms: D000818:Animals; D002871:Chromosome Banding; D006570:Heterochromatin / Q000648:ultrastructure*; D008856:Microscopy, Fluorescence; D009028:Morula; D009697:Nucleolus Organizer Region / Q000648:ultrastructure*; D013194:Staining and Labeling; D013552:Swine / Q000235:genetics*
chemical_list: D006570:Heterochromatin