Chapter 8 - Mitosis


Structure of Eukaryotic Chromosomes


Cell Cycle



Prophase the chromosomes coil and become more compact; the nuclear envelope breaks down; the spindle begins to form; the chromosomes attach to the spindle fibers
Metaphase the spindle fibers pull on the chromosomes until the chromosomes are lined up at the center of the cell
Anaphase the spindle fibers continue to pull on the chromosomes until the DNA copies (chromatids) separate from one another and are pulled to the ends of the cells; other spindle fibers are pushing the two ends of the cell away from each other
Telophase when the chromosomes are at opposite ends of the cell, they start to uncoil again; the nuclear envelope re-forms; the spindle fibers disappear; cytokinesis begins



© Carol L. Wymer, 2003