Strain differences in egg structure in Drosophila hydei.
D000818:Animals; D003433:Crosses, Genetic; D004330:Drosophila; D005260:Female; D005306:Fertilization; D005855:Germ Layers; D006824:Hybridization, Genetic; D008297:Male; D010063:Ovum / Q000033:anatomy & histology*; D013094:Spermatozoa / Q000502:physiology