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Animal Cell Mitosis

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The online animation demonstrates the stages of mitosis, the process of cell division in an animal cell.

  1. Interphase: Although cells appear inactive, they are highly active, with DNA replication, centriole division, and protein production occurring.
  2. Prophase: The nucleolus fades, chromatin condenses into chromosomes, and the mitotic spindle begins to form as the cytoskeleton disassembles.
  3. Prometaphase: The nuclear envelope breaks down, spindle fibers attach to kinetochores on chromosomes, and other spindle fibers overlap at the cell center.
  4. Metaphase: Spindle fibers align the chromosomes at the cell’s center.
  5. Anaphase: Spindle fibers shorten, separating chromatids and pulling them to opposite poles.
  6. Telophase: Daughter chromosomes reach the poles, and the spindle fibers disappear.
  7. Cytokinesis: The cell cleaves into two daughter cells, with microtubules reorganizing into a new cytoskeleton for the next interphase.

 

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