Production of the mature sperm cells have 4 step process beginning at puberty and throughout the male's lifetime. Spermiogenesis is the final process for production of sperm where the spermatids mature into motile spermatozoa. For humans, the spermatogenesis takes 74 days to 120 days and if the transport on the ductal system is included it would take 3 months.
The
final stage of spermatogenesis or production of sperm is called spermiogenesis.
It is the stage where spermatids differentiate into mature, motile spermatozoa.
This composed of four stages: first is the golgi phase where the spermatids
start to form a head and its DNA packaging are condensed. Second, the formation
of acrosomal cap in cap phase. Third phase is Acrosomal phase, one of the
centrioles of the spermatid elongates and become tail and the fourth phase is
maturation phase where the remaining cytoplasm and organelles are removed.
"Scientists are not close to knowing the exact processes that took place on the earth which led to the origins of life. They may never know the exact answer because the evidence for this very primitive life has probably been destroyed by the more efficient life which evolved from it.
