Biology

Difference between spermatogenesis and spermiogenesis

Main difference

In every living organism that has the type of sexual reproduction, gametes are necessary. These gametes are then synthesized in the body through a special process. These processes differ from each other in opposite sexes. Different processes synthesize male and female gametes. Males have germ cells or gametes called sperm, while the female has gametes called eggs or ovules. The process of production or development of sperm is called spermatogenesis and it occurs in the male’s testes. On the other hand, spermiogenesis is one of the crucial steps in the spermatogenesis process. In the process of spermiogenesis, the transformation of spermatids into spermatozoa takes place.

Comparative chart

Spermatogenesis Spermiogenesis
Definition Permatogenesis is the process in which sperm are produced from spermatogonial stem cells through mitosis and meiosis. Spermiogenesis is the final stage of spermatogenesis, which sees the maturation of spermatids into motile mature sperm.
Importance of the process Spermatogenesis refers to the entire sperm production process. Spermiogenesis is the final stage and one of the most crucial in the formation of sperm.
Conversion of genetic material In spermatogenesis, genetic material is converted from diploid to haploid. This does not happen in spermiogenesis.
Increase in the number of cells The huge increase in various cells is observed in the spermatogenesis process. There is no change in the number of cells that takes place in spermiogenesis.

What is spermatogenesis?

Sperm means male gamete and Genesis means synthesis. Spermatogenesis is the process of formation and development of sperm, in this haploid sperm are formed from diploid sperm. It takes place within the seminiferous tubules of the male’s testes. All stages of spermatogenesis are completed within the male’s testicle, and it is a constant process that means that sperm are continuously being synthesized in the male. It is a short process in which spermatogonia divide into spermatocytes. This process takes place in the epithelium of the seminiferous tubules. The primary spermatocyte divides into two secondary spermatocytes which then divide by meiosis II to form spermatids. Note that no polar bodies are formed here. These spermatids go through the condensation process and eventually form mature sperm. These sperm have a head, body,

What is spermiogenesis?

Spermiogenesis itself is one of the crucial steps in the process of sperm formation and development (spermatogenesis). In this process, the characteristic of each sperm is formed and facilitated by the organelles. As we know that the spermatozoa formed have a tail and a head that to make a skill, the organelles in this process are organized in such a way that the spermatozoa prepare to penetrate correctly avoiding all obstacles. Initially in spermiogenesis with the secretion of enzymes from the mitochondria and Golgi bodies, the acrosome is formed. The Golgi complex then covers the condensed genetic material and the acrosome. The next to follow in the spermiogenesis process is the formation of the tail. One of the centrioles extends in such a way that it forms the tails of the sperm. Through the last phase of spermiogenesis, no change occurs in the genetic material; the genetic material is condensed and remains protected while the tail formation phase takes place.

Spermatogenesis versus spermiogenesis

  • Spermatogenesis is the process in which sperm are produced from spermatogonial stem cells through mitosis and meiosis, while spermiogenesis is the final stage of spermatogenesis, which sees the maturation of spermatids into motile sperm mature.
  • Spermatogenesis refers to the entire sperm production process, while spermiogenesis is the final stage and one of the most crucial in the formation of sperm.
  • In spermatogenesis, genetic material is converted from diploid to haploid, although this does not happen in spermiogenesis.
  • The huge increase in a number of cells is attested in the process of spermatogenesis, contrary to this, there is no change in the number of cells that takes place in spermiogenesis.

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