https://www.khanacademy.org/science/biology/cellular-molecular-biology/mitosis/a/phases-of-mitosis
THE CELL CYCLE
1. The chromosomes start to condense 2. The mitotic spindle begins to form. 3. The nucleolus a part of the nucleus where ribosomes are made, disappears.
The spindle has captured all the chromosomes and lined them up at the middle of the cell, ready to divide.
The sister chromatids separate from each other and are pulled towards opposite ends of the cell.
The cell is nearly done dividing, and it starts to re-establish its normal structures as cytokinesis (division of the cell contents) takes place.
Pictures sources:https://www.khanacademy.org/science/biology/cellular-molecular-biology/mitosis/a/phases-of-mitosis