title: Chromatin rings as products of chromatin diminution in Cyclops.
abstract: Nuclei from the interphase preceding the 6th cleavage (=first diminution) division of Cyclops furcifer were subjected to a micro-spreading technique (Counce and Meyer, 1973) and examined by electron microscopy. In some preparations numerous chromatin rings formed by 250--300 A fibers were discovered in sizes ranging from 0.25 micrometers to more than 6 micrometers. These structures are assumed to represent the primary products of chromatin diminution.
mesh_terms: D000818:Animals; D002843:Chromatin / Q000648:ultrastructure*; D003445:Crustacea / Q000502:physiology*; D005260:Female; D008540:Meiosis; D008854:Microscopy, Electron; D008968:Molecular Conformation; D009865:Oocytes / Q000648:ultrastructure*; D010063:Ovum / Q000648:ultrastructure*
chemical_list: D002843:Chromatin