Nikolas
Created page with "thumb|329x329px|The phases of the cell cycle Many different cell types divide constantly. However, it is very important for cells to know when to divide and when not to. If a cell divides while it is in an unhealthy condition, cancer can occur. Proper cell division requires that the cell performs many “checkpoints” during the replication cycle, to make sure everything is working correctly before proceeding. This replication cycle is called th..."
