Term: unfertilized egg cortical granule
Note: This page represents a term created by the combination ("post-composition") of two ontology terms. For more information on the individual terms, click the hyperlinked name.
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