Here's why:
* Chromosomes need to be organized: Before a cell can divide, its genetic material (DNA) must be meticulously copied and organized. This is achieved by the condensation of the long, thin strands of DNA into compact, visible chromosomes.
* Visible under a microscope: This process makes the chromosomes visible under a light microscope, allowing scientists and researchers to study the process of cell division.
* Prior to other changes: This event precedes other visible changes like the formation of the mitotic spindle, the breakdown of the nuclear envelope, and the separation of the chromosomes.
So, while other changes are happening within the cell, the condensation of chromosomes is the first observable change that signals the beginning of cell fission.
