To accomplish this challenging feat, origins of replication are prepared for 'firing' exclusively in the G1 phase of the cell cycle. After S phase is complete, replication origins do not fire ...

The cell must also pass through a series of checkpoints that ensure conditions are favorable for division. In order to move from one phase of its life cycle to the next, a cell must pass through ...

When looking at cells with a microscope, the length of different stages of the cell cycle can be estimated using the formula: \(\text{Length of time in phase}=\) \(\frac{\text{observed number of ...