What is gametogenesis

Gametogenesis is the process by which certain organisms, such as humans and some plants, begin the process of cell division for the formation of gametes or sex cells.

In Biology, gametogenesis is observed in humans, animals and plants. The process begins with the division of diploid germ cells to form gametes (haploid cells).

In this way, each living being has different biological cycles that define the amount, form and moment in which gametogenesis will be activated, but all of them are characterized by their sexual reproduction.

Gametogenesis occurs in germ cells, which contain genetic information. A diploid germ cell, that is, one that contains only half of the genetic information in one set of chromosomes, divides in meiosis to generate 4 haploid cells or gametes.

In this way, gametogenesis allows the gametes, both male and female, to contain only half of the genetic information, thus generating genetic diversity with the genes of the mother and father.

Human gametogenesis

Gametogenesis in humans is different for the formation of male gametes and female gametes. It is for this reason that male gametogenesis is called spermatogenesis and female gametogenesis is called oogenesis.

Gametogenesis and oogenesis

Female gametogenesis, also known as oogenesis, refers to the meiosis of diploid cells that give rise to the formation of oocytes or female gametes. Oogenesis in humans takes approximately 28 days and is deposited in the ovaries.

Gametogenesis and spermatogenesis

In male gametogenesis or spermatogenesis, diploid cells undergo meiosis to give rise to the formation of sperm or male gametes. In humans, this process takes approximately 74 days and is stored in the testicles.

Gametogenesis and fertilization

Gametogenesis is the process in which sex cells are formed. In this sense, fertilization would not be possible without gametogenesis.

From the opposite point of view, it is in fertilization that the complete genetic material is determined, which will define in due time whether gametogenesis will be female or male.

Gametogenesis and meiosis

Meiosis plays a fundamental role in gametogenesis, as it is the cell division process that allows a diploid cell to divide into haploid cells, also known as sex cells.

Gametogenesis in plants

Gametogenesis is generated in the so-called higher plants that reproduce sexually.

Plants generate, through meiosis, the division of diploid cells to form female and male gametes. The female gametes or ovules are located in the embryo sac of the flowers, waiting to be fertilized by male gametes, generally in the form of pollen.