| 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: | chrorion micropyle | 
|---|---|
| Synonyms: | |
| Definition: | A single cone-shaped specialization that forms an opening in the egg chorion that allows sperm entry into the egg prior to fertilization. | 
| Ontology: | GO: Cellular Component [GO:0070825] QuickGO AmiGO |