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How is oogenesis more complex than spermatogenesis?
What is oogenesis starts in utero, stops and pauses in Prophase 1, then picks up again at puberty and stops at menopause. Also, result is one big functional egg and 2-3 polar bodies that are non functional. Whereas, spermatogenesis starts at puberty- continues until death and creates 4 haploid symmetrical cells.