FB2026_03 , released September 17, 2026
CV Term Report
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Term oogenesis stage S13B ID (Ontology) FBdv:00005280 (Fly Development)
Definition Oogenesis stage during which 9-11 nurse cell nuclei remain at the anterior of the oocyte. During this stage, the nuclear membrane of the oocyte nucleus disappears, indicating the start of meiotic pro-metaphase.[ FlyBase:FBrf0029744 ]
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Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
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 oogenesis stage S13B (all annotations which use CV term, excluding "NOT" statements)
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oogenesis
 |__oogenesis stage S13__
developmental stage      |
 |__oogenesis stage S13__|
                         oogenesis stage S13B  195 rec.
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