The document describes the stages of the cell cycle: interphase where cells mature and chromosomes copy, followed by prophase where the nuclear membrane disappears and spindle fibers form. Metaphase has chromosomes lining up in the middle with spindle fibers attaching to each pair. Anaphase splits the chromosome pairs as fibers pull them apart. Telophase forms two new nuclei and cell membrane pinches off two daughter cells in cytokinesis.

1. Cell Cycle Derek Marsh Start the Tour

2. Interphase Prophase Cytokinesis Telophase Anaphase Metaphase The Cell Cycle End Show

3. Interphase Cells mature. Chromosomes copy themselves. Back

4. Prophase Nuclear membrane disappears. Spindle fibers form at the poles. Back

5. Metaphase Chromosomes line up at middle. 2 spindle fibers attach to each chromosome pair. Back

6. Anaphase Chromosome pairs split. Fibers pull the chromosomes to each pole. Back

7. Telophase 2 new nuclei form at two poles wher3e chromosomes gather mitosis is complete cell membrane pinches off. Back

8. Cytokinesis Two new daughter cells are formed. Back