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ECB-STAGE-4
Name: not fully grown oocyte stage
ECAO ID: 0000050 Definition: "A developing female gamete that started growing in size by accumulation of yolk proteins. At this stage, it is characterized by the presence of a large nucleus, the germinal vesicle, which contains a prominent nucleolus and occupies most of the cytoplasm." |
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Preceded By: previtellogenic primary oocyte stage | Succeeded By: fully grown oocyte with centered germinal vesicle stage |