| 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: | mitochondrial cloud |
|---|---|
| Synonyms: | Balbiani body, mitochondrial aggregate |
| Definition: | A prominent mass in the cytoplasm of previtellogenic oocytes. The cloud contains both mitochondria and electron-dense granulofibrillar material (GFM) and is the source of germinal granule material. |
| Ontology: | GO: Cellular Component [GO:0032019] QuickGO AmiGO |