1. 5.2 Mitosis and Cytokinesis Cells divide during mitosis and cytokinesis.

2. 5.2 Mitosis and Cytokinesis Chromosomes condense at the start of mitosis. DNA wraps around proteins (histones) that condense it. DNA double helix DNA and histones Chromatin Supercoiled DNA

3. 5.2 Mitosis and Cytokinesis Chromatin- DNA plus proteins. Chromatid- One half of a duplicated chromosome. Centromere- Hold together Sister chromatids. Telomeres- protect DNA and do not include genes. Condensed, duplicated chromosome chromatid telomere centromere telomere

4. 5.2 Mitosis and Cytokinesis Parent cell centrioles spindle fibers centrosome nucleus with DNA Interphase prepares the cell to divide DNA is duplicated. Mitosis and Cytokinesis produce two genetically identical daughter cells.

5. 5.2 Mitosis and Cytokinesis Mitosis divides the cell’s nucleus in four phases. PMATPMAT PROPHASE METAPHASEANAPHASE TELOPHASE

6. 5.2 Mitosis and Cytokinesis Chromosomes condense, PAIR, and spindle fibers form. Prophase

7. 5.2 Mitosis and Cytokinesis METAPHASE Chromosomes line up in the MIDDLE of the cell.

8. 5.2 Mitosis and Cytokinesis ANAPHASE Sister chromatids are pulled AWAY to opposite sides of the cell.

9. 5.2 Mitosis and Cytokinesis TELOPHASE TWO new nuclei form and chromosomes begin to uncoil.

10. 5.2 Mitosis and Cytokinesis divides cytoplasm into two cells –In animal cells, the membrane pinches closed. –In plant cells, a cell plate forms.

11. 5.2 Mitosis and Cytokinesis Mitosis Overview Prophase- Chromosomes PAIR Metaphase- Chromosomes line up in the MIDDLE Anaphase- Sister chromatids are pulled AWAY Telophase- TWO new nuclei are formed PMAT

12. 5.2 Mitosis and Cytokinesis ProphaseMetaphase AnaphaseTelophase Cytokinesis