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Term: blastomere 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: blastomere
Synonyms: blastomeres
Definition: Cell that arises during cleavage and is partially cleaved, and located at the blastodisc margin prior to collectively forming the yolk syncytial layer (YSL) in the midblastula.
Ontology: Anatomy Ontology [ZFA:0000093]
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