| Name: | oocyte stage I | 
|---|---|
| Synonyms: | oocytes stage I, previtellogenic oocyte, primary oocyte, Stage 1 oocyte | 
| Definition: | Oocyte part of stage I ovarian follicle. Stage I oocytes are basophilic, and have relatively large nuclei. | 
| Ontology: | Anatomy Ontology [ZFA:0001567] |