title: The zona pellucida: a coat of many colors.
mesh_terms: D000818:Animals; D005260:Female; D005306:Fertilization; D008297:Male; D051379:Mice; D009865:Oocytes / Q000166:cytology* / Q000502:physiology / Q000648:ultrastructure; D010063:Ovum / Q000648:ultrastructure*; D013084:Sperm-Ovum Interactions; D015044:Zona Pellucida / Q000502:physiology / Q000648:ultrastructure*