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9 November, 12:36

How do spermatogenesis and oogenesis differ in terms of the number of gametes they produce?

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  1. 9 November, 16:32
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    In spermatogenesis the sex cell divides (from 46 chromos to 23), and then divides again to produce 4 haploid cells that become sperm. In oogenesis, the sex cell divides into one ovum and a polar body in the first division, and in the second division the ovum divides again into a haploid (ovum) and a polar body, and the polar body divides into two more polar bodies. Polar bodies are non-functional, so only one ovum is produced in the end. Spermatogenesis produces millions of sperm, while oogenesis only produces one mature ovum a month.
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