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The Cell Cycle

The Cell Cycle. INTERPHASE :. G 1 - cell growth, the longest part of the cell’s life S – DNA synthesis, DNA is copied (replication) G 2 – cell prepares for division, organelles replicate. MITOSIS : nuclear division. PROPHASE :

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The Cell Cycle

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  1. The Cell Cycle

  2. INTERPHASE : G1- cell growth, the longest part of the cell’s life S – DNA synthesis, DNA is copied (replication) G2 – cell prepares for division, organelles replicate

  3. MITOSIS: nuclear division PROPHASE: • Longest phase of mitosis • DNA coils and chromosomes form, sister chromatids are held together by the centromere • Nuclear envelope and nucleolus dissolve • Centrioles migrate to the poles • Spindle forms

  4. PROPHASE: Animal cell Plant cell

  5. METAPHASE:chromosomes line up at the equator Plant cell Animal cell

  6. ANAPHASE: spindle fibers pull the sister chromatids apart Plant Cell Animal Cell

  7. TELOPHASE: Spindle dissolves Nuclear envelope and nucleolus reform DNA uncoils forming chromatin

  8. CYTOKINESIS: cell division, 2 daughter cells form Plant cell: new cell plate forms in the middle Animal cell: cleavage furrow forms, cell pinches inwards

  9. Onion cells – find cells in the following phases: Prophase, Metaphase, Anaphase In the next slide also find interphase and telophase.

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