It is a process by which asexual reproduction occurs in unicellular organisms.
Mitosis is said to be the phase of the cell cycle in which the nucleus of a cell is divided into two nuclei having an equal amount of genetic material in both the daughter nuclei.
It is followed by the G2 phase and by cytoplasmic division after the separation of the nucleus.
Mitotic changes in Chromosomes:
Mitotic changes in the chromosomes occur due to coordinated changes in chromosome structure: compaction, loss of sister-chromatid cohesion, and DNA unknotting.
This is primarily carried out via mitotic protein kinases.
These kinases(enzymes) act via multiple pathways that are responsible for determining the chromosomal behavior in mitosis.