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Oogenesis Mechanism

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Oogenesis, unlike spermatogenesis per Bio 3333, produces one mature egg per cycle, unequal cytoplasmic division concentrating resources into the single surviving cell.

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Meiosis in oogenesis produces polar bodies alongside the egg, discarding most divided cytoplasm.

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The unequal division is not waste: it concentrates cytoplasm and stored nutrients into the one cell that must supply a zygote.