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.
Meiosis. Spermatogenesis is the process by which the male gametes, called sperm, are created. Now, you may recall that in order to create sperm that can combine with a female gamete, each sperm must be haploid and contain only one copy of each chromosome.esson Summary. Let's review. Spermatogenesis is the process by which the male gametes, called sperm, are created. Spermatogenesis takes place in the seminiferous tubules, which are an intricate system of tubules in the testes where spermatogenesis takes place.