Chromosomes<span> first become </span>visible during<span> prophase in mitosis, and they are fully</span> visible during<span> metaphase and anaphase. They lose their visibility </span>during<span> telophase and are not </span>visible during<span> cytokinesis, which follows mitosis.</span>
Internal and external cell regulators, external speed up and down the cell, internal allows the processes of the cell to begin
