Mitosis

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Mitosis

  1. 1. Cellular divisionfrom one cell to two<br />By: Jason, Digital Immersion period 2 and 3<br />
  2. 2. Introduction and Interphase<br />Mitosis is the short end of a cell cycle, it’s the process when nucleus contents are duplicated and divide into two. This is first possible once the cell has got through interphase and its DNA is replicated.<br />
  3. 3. Prophase<br />As the chromatin condenses into chromosomes the nucleolus disappear while spindle fibres gradually form. These string-like materials are then attached to centromeres.<br />
  4. 4. Here in prometaphase the contents are overlapping at the cell center, spindle fibres are attached. Nuclear envelope is no longer noticeable.<br />chromosomes<br />cell membrane<br />spindle fibre<br />nucleolus<br />
  5. 5. Metaphase<br />At this stage the nucleolus is gone, tension applied the spindle fibre aligns the chromosomes around the equator of the cell. The cellular shape has now been extracted.<br />poles<br />poles<br />The chromosomes are aligning at the center of the cell<br />
  6. 6. Anaphase<br />Spindle fibres shortens while the chromosomes is pulled into two sister chromatids, these components reaches to the opposite poles of the cell and slowly the cell starts to separate.<br />sister chromatids<br />
  7. 7. Telophase<br />The specific spindle fibre that pull the sister chromatids to the opposite poles disappears once it has reach its destination. These condensed chromatin would later expand making nuclear envelope reappear.<br />
  8. 8. Cytokinesis<br />Remaining spindle fibres continues to break down to the extent when only the overlap exist, resulting in fibre rings. New cytoskeletons are formed in preparation to interphases for the two separated cells.<br />fibre rings<br />forming contents<br />
  9. 9. Interphase<br />The two newly formed cells<br />

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