What happes in mitosis?

Steps: Use diagrams to draw each step1.Interphase (think 'I' is also a number 1 to start!)DNA has been copied (late G2 phase). Chromosomes are now existing as 2 pairs called sister chromatids but can't been seen yet!2.Prophase (Think P for preparation pairs!)Nucleolus starts to break down. Chromosomes condense and become visible as pairs. Spindle fibres begin to form. During prometaphase (at the end of prophase) the nuclear envelope breaks down to release chromosomes. 3.Metaphase (Think M for middle!)Chromosomes line up in the centre along the 'metaphase plate'. Spindle fibres attach to the centromere (in the middle of each chromosome) Spindle checkpoint to ensure all sister chromatids are divided equally among the spindle. 4.Anaphase (Think A for apart!)Sister chromatids are seperated as the spindle fibres contract. Spindle + attached sister chromatid are pulled apart as they are pulled towards the centrosomes at either end.5.Telophase (Think T for two cells!)Once chromatids are at either edge of the cell, the cell begins to divide in the centre. Cytokinesis (division of cell material) occurs. At the end, 2 new nuclei are formed and the nuclear envelopes etc reform. Chromosomes decondense.