title: An ultrastructural study of the first cleavage of Xenopus embryos.
mesh_terms: D000818:Animals; D002455:Cell Division; D003593:Cytoplasm; D005260:Female; D006056:Golgi Apparatus; D002479:Inclusion Bodies; D007365:Intercellular Junctions; D008297:Male; D008566:Membranes; D008855:Microscopy, Electron, Scanning; D010063:Ovum / Q000166:cytology / Q000254:growth & development*; D014981:Xenopus / Q000196:embryology*