header logo image header logo text
Downloads Login
Research
General Information
ZIRC
OBO ID: GO:0045120
Term Name: pronucleus Search Ontology:
Synonyms:
Definition: The nucleus of either the ovum or the spermatozoon following fertilization. Thus, in the fertilized ovum, there are two pronuclei, one originating from the ovum, the other from the spermatozoon that brought about fertilization; they approach each other, but do not fuse until just before the first cleavage, when each pronucleus loses its membrane to release its contents. 0198506732
References:
Ontology: GO: Cellular Component   QuickGO   AmiGO
expand   EXPRESSION
expand   PHENOTYPE