FB2025_05 , released December 11, 2025

CV Term Report

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General Information
Term	pronucleus	ID (Ontology)	FBbt:00000048 (Fly Anatomy)
Definition	The haploid nucleus of the oocyte or sperm cell following fertilization.[ FlyBase:FBrf0064779 ]
Comment
Links to External Ontologies

Annotations
Records annotated with this term OR any of its CHILD TERMS
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Records annotated with this exact term (annotations to child terms are NOT included)
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Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
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Spanning Tree (Parents/Children)

  anatomical structure
   |__cell component
       |__pronucleus  66 rec.
           |__female pronucleus 6 rec.
           |__male pronucleus 6 rec.
           |__polar body nucleus 61 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	cell component
Part of	egg
Synonyms & Secondary IDs
Synonyms

Secondary IDs

External Crossreferences & Linkouts
	GO:0045120