Mitosis

• Prophase, the first stage of mitosis, is when the chromosomes condense and the nuclear membrane breaks down. The spindle fibres attach to the centromeres.
• Metaphase, sister chromatids line up along the equator of the cell, and the centromere splits in two.
• Anaphase, the chromosomes are pulled to opposite poles of the cell. Spindle fibres retract. Requires ATP from respiration.
• Telophase, the nuclear membrane reforms and the cytoplasm spilts (cytokinesis) to form the 2 daughter cells.