Diploid spermatogonia → haploid spermatozoa via meiosis + spermiogenesis in seminiferous tubules. Continuous in males from puberty; ~64 days/cycle; 300M sperm/day.
Diploid spermatogonia → haploid spermatozoa via meiosis + spermiogenesis in seminiferous tubules. Continuous in males from puberty; ~64 days/cycle; 300M sperm/day.