FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
CV Term Report
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General Information
Term pronucleus ID (Ontology) GO:0045120 (Gene Ontology)
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.[ ISBN:0198506732 ]
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Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       4
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 Alleles Constructs
 pronucleus (all annotations which use CV term, excluding "NOT" statements)       4       --
     pronucleus | maternal effect       5      3
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  intracellular membrane-bounded organelle
   |__nucleus
       |__pronucleus  33 rec.
           |__female pronucleus 17 rec.
           |__male pronucleus 18 rec.
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Wikipedia:Pronucleus