Formation of the vitelline membrane and chorion in developing oocytes of Ephestia kühniella.
D000818:Animals; D002454:Cell Differentiation; D002467:Cell Nucleus; D004625:Embryo, Nonmammalian / Q000166:cytology*; D004721:Endoplasmic Reticulum; D005260:Female; D006056:Golgi Apparatus; D002479:Inclusion Bodies; D007313:Insecta / Q000166:cytology / Q000196:embryology*; D008854:Microscopy, Electron; D008855:Microscopy, Electron, Scanning; D010053:Ovary / Q000166:cytology; D010063:Ovum / Q000166:cytology*