in oogenesis, one mature ovum is produced from the parent cell, and in spermatogenesis four mature sperm are produced from the parent cell
during spermatogenesis two more polar bodies are produced
spermatogenesis involves mitosis and meiosis, but oogenesis involves meiosis only
the mature ovum is n, while the sperm is 2n
in spermatogenesis, the sperm have a diploid number(2n)