title: Use of egg membrane lysins in the preparation of sea urchin egg ghosts.
mesh_terms: D000818:Animals; D002448:Cell Adhesion; D002462:Cell Membrane; D004447:Echinodermata; D005260:Female; D006651:Histocytochemistry; D006652:Histological Techniques; D008297:Male; D008854:Microscopy, Electron; D008858:Microscopy, Phase-Contrast; D010063:Ovum / Q000166:cytology*; D013094:Spermatozoa; D014357:Trypsin; D014817:Vitelline Membrane / Q000166:cytology
chemical_list: D014357:Trypsin