Biology, 01.05.2021 23:00, Shlabo

why in an ovary, germ cells undergo oogenesis (enter meiosis) during fetal life (before birth). but in a testis, germ cells do not undergo spermatogenesis (do not enter meiosis) until puberty?

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why in an ovary, germ cells undergo oogenesis (enter meiosis) during fetal life (before birth). but...