Question: what is the difference between oogenesis and spermatogenesis and where does each occur?
Answer: Spermatogenesis takes place in the testes of males, oogenesis takes place in the ovary of the females. Spermatogenesis produces small, motile spermatozoa whereas in oogenesis the ovum is spherical, not motile and is much larger with more food reserves and cytoplasm. ... It takes 70 days for sperm to be produced in males.