Name: | ovarian follicle stage I |
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Synonyms: | ovarian follicle stage 1, previtellogenic ovarian follicle |
Definition: | Stage I follicles (less than 140 microns) contain a stage 1 oocyte and are in the primary growth stage. |
Ontology: | Anatomy Ontology [ZFA:0001263] |
Name: | aplastic |
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Synonyms: | aplasia, undeveloped |
Definition: | Absence of an organ, tissue or cell due to failure to develop from a primordium or precursor cell. |
Ontology: | Phenotypic Quality Ontology [PATO:0001483] |