Wednesday, March 21, 2012

The Cell Cycle

  • G1: The cell grows and duplicates its contents (except the chromosomes).
  • S: The cell duplicates its chromosomes
  • G2: The cell checks for error in the duplicated chromosomes


  • Prophase: the cell's chromosomes become visible, and nuclear membranes begin to dissolve. Also, centrioles migrate to opposite poles of the cell, and spindle fibres begin to form between the two centrioles.
  • Metaphase: The chromotids move to the center of the cell, and form the metaphase plate.
  • Anaphase: The centromere splits apart, and the chromotids move to the opposing poles of the cell.
  • Telophase: nuclear membrane begins to reappear. Chromosomes begin to uncoil. The spindle fibres begin to disappear

- The two daughter cells separate