title: Ultrastructural observations on cortical endoplasmic reticulum and on residual cortical granules in the egg of Xenopus laevis.
mesh_terms: D000818:Animals; D003594:Cytoplasmic Granules / Q000648:ultrastructure*; D004721:Endoplasmic Reticulum / Q000648:ultrastructure*; D005260:Female; D005306:Fertilization; D008854:Microscopy, Electron; D008938:Mitosis; D010063:Ovum / Q000166:cytology*; D010586:Phagocytes / Q000648:ultrastructure; D013045:Species Specificity; D014981:Xenopus / Q000502:physiology*