Cissiparity, also known as binary fission and bipartition, is a type of asexual reproduction. she is observed in bacteria, which can also occur in some protozoa and yeast.
→ What is asexual reproduction?
Asexual reproduction is one that takes place without the participation of gametes. It is a reproduction relatively quick and simple that gives rise to individuals equal to their parents. Because they are the same as the organisms that generated it, we say that it is about natural clones. It is worth noting, however, that, despite the process generating clones, it may occur mutation, which leads to a modification in the genes.
→ How does cissiparity occur?
Cissiparity occurs in single-celled organisms, which simply split in half, generating two individuals. In cissiparity, there is replication of the chromosome and the subsequent division of the mother cell in two. See the diagram below:
In the diagram, you can see an initial cell, which starts to increase in size and replicate your genetic material
. Over time, the cell wall and plasma membrane begin to invaginate, form a wall (septum) and the cell separates, giving rise to two identical daughter cells. It is noteworthy that the division can occur along its length, as in flagellated protozoa, or transversely (see figure above), as in ciliated protozoa and bacteria.Heads up: Although the reproduction of bacteria through shearing is quite widespread, they can reproduce in other ways, such as sporulation and budding. Furthermore, genetic recombination can occur in processes such as conjugation and transduction.
By Ma. Vanessa dos Santos
Source: Brazil School - https://brasilescola.uol.com.br/o-que-e/biologia/o-que-e-cissiparidade.htm