FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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Term stage S4 oocyte ID (Ontology) FBbt:00005264 (Fly Anatomy)
Definition Oocyte during stage 4 of oogenesis. Its chromosomes have condensed into a karyosome (Mahowald and Kambysellis, 1980; Spradling, 1993) and the nurse cell chromosomes appear bulbous (Mahowald and Kambysellis, 1980).[ FlyBase:FBrf0021038 FlyBase:FBrf0034074 FlyBase:FBrf0064777 ]
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 stage S4 oocyte (all annotations which use CV term, excluding "NOT" statements)       4
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  female germline cell
   |__oocyte
       |__stage S4 oocyte  4 rec.
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Is a oocyte
Develops from stage S3 oocyte
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