1. Mitosis and The Cell Cycle
AP Biology

2. Cell Division

3. Cell Division Development of multicellular organisms
Repair and renew cells

4. Cell Division Mitosis – division of the nucleus
Cytokinesis – division of the cytoplasm

5. Chromosomes A cell’s genetic information is called its genome.
DNA molecules are packaged into chromosomes.

6. Chromosomes
Chromatin

9. Duplicated Chromosome
Chromatids
Centromere

10. Cell Division Mitosis – division of nucleus
Cytokinesis – division of cytoplasm

11. Early Prophase Chromatin condenses into coiled chromosomes
Centrioles separate and spindle begins to form
Nuclear membrane breaks down

12. Late Prophase
Spindle is complete
Spindle fibers attach to chromosomes

13. Metaphase Centrioles have moved to opposite poles of the cell
Chromosomes line up across the equator of the cell

14. Anaphase
Chromosomes are pulled apart by spindle into individual chromosomes

15. Telophase Chromosomes gather at opposite ends of the cell
Two new nuclear envelopes form
Cytokinesis

18. Mitosis

19. Cytokinesis – division of the cytoplasm
Animal Cytokinesis – creates a cleavage furrow

20. Plant Cytokinesis
Plant create a cell plate which will develop into a cell wall.