Mitosis is the process of cell division. Mitosis occurs in a series of steps; prophase, metaphase, anaphase and telophase. Prophase occurs when the chromatin condenses into visible chromosomes. Metaphase is when the chromosomes line up in the midline of each cell. The chromosomes are then pulled away from each other and form sister chromatids; this phase is called Anaphase. During Telophase, the sister chromatids reach the opposite poles and start to condense while the nucleus reforms. Can you identify the different stages in this painting?