Oogonium where the mitotic division occurs, Differentiation and meiosis I begins, Primary oocyte, Meiosis I is completed and meiosis II begins, Secondary oocyte, First polar body, Ovulation must occur and the presence of the sperm penetration (fertilization) induces meiosis II to completion, Ovum, Second polar body.

Oogenesis

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？