| 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] |
| Name: | germinal vesicle |
|---|---|
| Synonyms: | primary oocyte nucleus |
| Definition: | The enlarged, fluid filled nucleus of a primary oocyte, the development of which is suspended in prophase I of the first meiotic division between embryohood and sexual maturity. |
| Ontology: | GO: Cellular Component [GO:0042585] QuickGO AmiGO |