| Name: | unfertilized egg |
|---|---|
| Synonyms: | activated oocyte |
| Definition: | A female gamete where meiosis has progressed to metaphase II and is able to participate in fertilization. In zebrafish specified to be outside the body. |
| Ontology: | Anatomy Ontology [ZFA:0001570] |
| Name: | cortical granule |
|---|---|
| Synonyms: | cortical vesicle |
| Definition: | A secretory vesicle that is stored under the cell membrane of an egg. These vesicles fuse with the egg plasma membrane as part of egg activation and are part of the block to polyspermy. |
| Ontology: | GO: Cellular Component [GO:0060473] QuickGO AmiGO |