PHYSIOLOGY. REPRODUCTION. Oogenesis: Egg Cell Formation. Oogonia mitosis ceases before birth At birth: only primary oocytes – suspended in prophase of meiosis I (= prophase I). Oogenesis after Birth:. At puberty: ↑ estrogen initiates ovarian cycle. ovulation.
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Oogenesis: Egg Cell Formation
Oogonia mitosis ceases before birth
At birth: only primary oocytes – suspended in prophase of meiosis I (= prophase I)
Oogenesis after Birth:
At puberty: ↑ estrogen initiates ovarian cycle
2nd meiotic division completed after fertilization
Growth and Aging
Biosynthetic Pathway for Steroid Hormones
convert androgens to