When you see a file with a .XLS extension, you know itâs referring to an Excel file, and so on. But with .DAT files, you have to figure out how to open it yourself and different .DAT files may open with different programs. The best way to open a .DAT file is to use the program that created it.
The spermatogenesis is the male counterpart of oogenesis in females. The spermatogenesis and oogenesis are the two forms of gametogenesis. Spermatogenesis consists of stages: (1) spermatocytogenesis, (2) spermatidogenesis, and (3) spermiogenesis. In humans, it starts at puberty and continues throughout lifetime. It occurs in the male testes and epididymis in a stepwise fashion. The entire process can take approximately 64 days.
MainPlaceHolder. An illustrated introduction to Spermatogenesis, the process by which sperm (male sex cells or âgametesâ) are formed in the testes. The process begins when a spermatogonia cell matures and grows to become a primary spermatocyte, which then undergoes meiosis I to produce two secondary spermatocytes.