The Cell Cycle.

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Presentation transcript:

The Cell Cycle

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

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

PROPHASE: Animal cell Plant cell

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

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

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

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

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

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