The ultrastructure of the cortical granules and their products in the sea urchin egg as studied with the electron microscope.
D000818:Animals; D004583:Electrons; D008853:Microscopy; D008854:Microscopy, Electron; D010063:Ovum; D012617:Sea Urchins; D022142:Secretory Vesicles
MICROSCOPY, ELECTRON; OVUM