?? What are one of the first events of spermatogenesis?

Here's a great link for the answer, all the info you would want: http://www.ucalgary.ca/UofC/eduweb/virtualembryo/spermatogenesis.html

Can be found in any biology book easily


The first step is :

1) formation of primary spermatocytes
2) // // secondary //
3) // // tertiary spermatocytes
4) mature sperms swim and can just last for 72 hours .