stage S13 oocyte [FBbt_00005278]

Oocyte during stage 13 of oogenesis. It has reached its maximum volume and is completely sealed by the vitelline membrane (King, 1970). Its nuclear envelope starts to break down and the chromosomes move to the metaphase plate of meiosis I and arrest (Mahowald and Kambysellis, 1980) until fertilization (Puro and Nokkala, 1977).

stage S13 oocyte

ID: FBbt_00005278

Adult Cell

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## Classification

oocyte

Relationships

develops from: stage S12C oocyte

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