Bacterial fission is a way of dividing cells in half, and mitosis is a type of indirect fission of the nucleus, and then the cytoplasm. Mitosis is a nuclear fission that leads to the formation of two daughter nuclei, each of which has exactly the same set of chromosomes as in the parent nucleus. Bacterial division is binary division, directly the process of cell division in half is preceded by a period of growth of the cytoplasm and replication (doubling) of the bacterial ring chromosome.
When doubling the DNA of a nucleoid (an analog of the nucleus in a bacterial cell), the following scheme is implemented:
– initiation – the beginning of DNA division under the action of a replicon (enzymatic apparatus, a portion of DNA containing information about duplication);
– elongation – elongation, growth of the chromosome chain;
– termination – completion of chain growth and DNA spiralization during replication.
In parallel with DNA replication, the cell itself grows, and the distance between the two new chromosomes attached via the mesosomes to the cytoplasmic membrane gradually increases. The prokaryotic cell begins to divide some time after replication. Obviously, it is DNA duplication that triggers the separation process.
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