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A checkpoint is a stage in the eukaryotic cell cycle at which the cell examines internal and external cues and "decides" whether or not to move forward with division.

Explore the stages of the cell cycle and how cells grow, replicate DNA, and divide. Understand the events of interphase and their role in preparation for division.

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In the article on cell cycle checkpoints, we looked at the why of cell cycle transitions: the factors that a cell considers when deciding whether or not to move forward through the cell cycle.

Analyze how the cell cycle is regulated and identify what happens when those controls break down. Investigate how disruptions in checkpoints and signaling pathways can lead to uncontrolled cell …

Unit 10: Cell division About this unit This unit is part of the Biology archive. Browse videos and articles by topic. For our most up-to-date, mastery-enabled courses, check out High School Biology and AP …

Cell cycle checkpoints ensure that the cell cycle moves forward without mistakes. The three major cell cycle checkpoints occur at the G₁/S transition (the G₁ checkpoint), the G₂/M transition (the G₂ …

Explore the stages of the cell cycle and how cells grow, replicate DNA, and divide. Understand the events of interphase and their role in preparation for division.

The cell cycle can be thought of as seasons in a year. Just as we have seasons such as the spring or the summer where things grow, versus fall and winter where they don't, the cell has times when it …