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2.5 The Cell Cycle The steps of Mitosis Remember the 3 reasons for cell division? 1) GROWTH 2) REPAIR 3) ASEXUAL REPRODUCTION The Cell Cycle Mitosis is a very SMALL but IMPORTANT part of the cell cycle See page 40 Mitosis The stage of the cell cycle in which the DNA in the nucleus is divided, the first part of cell division products of mitosis Mitosis produces two daughter cells that are EXACTLY like the parent cell. 4 phases of mitosis P - Prophase M - Metaphase A - Anaphase T - Telophase Prophase The 1st phase of mitosis long strands of DNA condense to form visible chromosomes The nuclear membrane dissolves metaphase Spindle fibres form and line up chromosomes along the equator of the cell anaphase Spindle fibres pull sister chromatids (each half of the chromosome) apart at the centromere (the middle) telophase The final stage of mitosis The chromosomes unwind and are no longer visible Nuclear membrane forms around each set of daughter chromosomes after mitosis Cytokinesis: the cytoplasm and all it’s contents are divided into the daughter cells Remember the stages I - Interesting P - People M - Make A - Annoying T - Tasks C - Cool
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