Before entering fully into the meaning of the term gametogenesis, it is necessary to know its etymological origin. In this case, we can state that it is a word that comes from the Greek. It is exactly the result of the sum of three lexical components of that language:
-The noun “gamete”, which can be translated as “wife”.
-The term “genos”, which is synonymous with “produce” or “engender” as well as “family”.
-The suffix “-sis”, which is equivalent to “action”.
The gametes Are the sex cells: the male gamete is the spermatozoon and the female gamete, the Ovum. When the sperm and egg fuse, the zygote or zygote, the cell resulting from sexual reproduction that, from its development and segmentation, gives rise to the appearance of a new specimen.
To gamete formation it is called gametogenesis. It is an evolutionary process that begins with germ cells: with the meiosis of this cells, gametes arise.
It should be remembered that meiosis is a form of cellular reproduction. In this case, meiosis takes place in the gonads, the organ responsible for the production of gametes and, therefore, gametogenesis. Germ cells register divisions and thus the gametes (sperm and ovules) are generated.
In germ cells, there are 46 chromosomes. After meiosis, each gamete has 23 chromosomes. In this way it goes from diploid cells to haploid cells, which must be merged to have the complete number and the entire genetic material.
Since there are male gametes and female gametes, gametogenesis can be classified in two ways according to sex: spermatogenesis (the production of sperm) Y oogenesis (the production of eggs). Spermatogenesis occurs in the testes and involves a process in which the germ cell becomes spermatogonia, primary spermatocytes, secondary spermatocytes, and spermatids before reaching sperm status. Oogenesis, meanwhile, takes place in the ovaries, where the original diploid cell divides between three haploid cells that are not functional (known as polar bodies) and one haploid cell that is functional (the ovum).
Although spermatogenesis and oogenesis are processes with different characteristics, we cannot ignore either that they do have points in common. We are referring to aspects such as the following:
-In both processes what happens is that gametes are produced.
-They both start once meiosis has taken place.
-In the same way, it should be noted that both processes are included within the so-called gametogenesis.
-Not less relevant is that both take place in mammals.
-The two take place within what are the gonads.
In the same way, we cannot ignore the fact that there is what is known as in vitro gametogenesis. This also responds to the name of IVG and basically consists of obtaining gametes in an absolutely artificial way. This is something that is achieved, how could it be otherwise, from what are the cells of an adult person.