![]() Takes place in seminiferous tubules of the testisĪ proportion of male germ cells (spermatogonia) enter mitosis and, after 5 mitosis, become type B spermatogonia, which divide mitotically into primary spermatocytes.Inhibition of mitosis /meiosis of the PGCĭifferentiation of primordial germ cells in femalesĭifferentiation of the PGC into oogonia and oocyte 2. PGC proliferate following colonization of the genital ridgeĭifferentiation of primordial germ cells in males.PGC migrate from the epithelium of the yolk sac to the genital ridge by amoeboid movements.PGC are identifiable in 3-weeks old embryo, in the epithelium of the yolk sac. ![]() ![]() 9th Postgraduate Course for Training in Reproductive Medicine and Reproductive Biologyĭepartment of Obstetrics and Gynecology, Geneva University Hospital 1.
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