Electron microscope studies on the origin and maturation of yolk in oocytes of the tunicate, Ciona intestinalis.
D000818:Animals; D002816:Chordata, Nonvertebrate / Q000196:embryology; D004530:Egg Yolk; D004721:Endoplasmic Reticulum; D005260:Female; D006056:Golgi Apparatus; D008854:Microscopy, Electron; D010063:Ovum / Q000502:physiology*; D010873:Pinocytosis; D012270:Ribosomes