FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

polar body extrusion after meiotic divisions

ID (Ontology)

GO:0040038 (Gene Ontology)

Definition

The cell cycle process in which two small cells are generated, as byproducts destined to degenerate, as a result of the first and second meiotic divisions of a primary oocyte during its development to a mature ovum. One polar body is formed in the first division of meiosis and the other in the second division; at each division, the cytoplasm divides unequally, so that the polar body is of much smaller size than the developing oocyte. At the second division in which a polar body is formed, the polar body and the developing oocyte each contain a haploid set of chromosomes.[ ISBN:0198506732 ]

Comment

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Annotations

Records annotated with this term OR any of its CHILD TERMS

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Direct annotations: records annotated with this exact term (child terms are NOT included)

Data Class	Field	Direct annotations
Genes (FBgn)	GO_BIOLOGICAL_PROCESS

Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

Full annotation statements	Relevant FlyBase reports
Full annotation statements	Genes
polar body extrusion after meiotic divisions (all annotations which use CV term, excluding "NOT" statements)
involved_in \| polar body extrusion after meiotic divisions

Spanning Tree (Parents/Children)

female gamete generation
 |__female meiotic nuclear division__
cytoskeleton-dependent cytokinesis   |
 |__meiotic cytokinesis______________|
meiotic nuclear division             |
 |__female meiotic nuclear division__|
meiotic cell cycle process           |
 |__meiotic cytokinesis______________|
                                     polar body extrusion after meiotic divisions  1 rec.

Spanning Tree View Settings
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Relationships
Is a	meiotic cytokinesis
Part of	female meiotic nuclear division
Synonyms & Secondary IDs
Synonyms

Secondary IDs

External Crossreferences & Linkouts