Cell Cycle The cell cycle consists of three
- Slides: 16
Cell Cycle The cell cycle consists of three stages. As the cell passes through the cycle it grows and divides. The three stages are: 1. interphase 2. mitosis 3. cytokinesis
Cell Cycle
Interphase • time between cell divisions • longest stage • cell performs its normal functions and its genetic material is copied in preparation for cell division
Mitosis: - the division of the contents of the nucleus Four parts of mitosis 1. Prophase 2. Metaphase 3. Anaphase 4. Telophase
Prophase • chromosomes becomes visible • nuclear membrane dissolves
Prophase
Metaphase • chromosomes line up in the middle of the cell.
Metaphase
Anaphase • centromere splits and sister chromatids separate into daughter chromosomes • each moves toward opposite ends of the cell
Anaphase
Telophase • chromatids unwind a nuclear membrane reforms around the chromosomes at each end of the cell
Telophase
Cytokinesis • Cytoplasm divides, producing two genetically identical daughter cells • Occurs after mitosis
Cytokinesis
Important Terms Chromosomes: the structure in the cell nucleus made up of cell’s DNA, condensed into a structure visible under light microscope Chromatid: one of two identical strands of DNA that make up a chromosome Centromere: structure that holds chromatids together Pg. 44 #1 -5
Mitosis • http: //www. teachertube. com/view. Video. ph p? title=Cell_Division_Mitosis_Dance&vide o_id=77880 • http: //www. allthingsscience. com/video/490 /The-Stages-of-Mitosis • http: //www. learn 360. com/Show. Video. aspx ? Search. Text=mitosis&ID=383244 Mitosis Dance
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