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Regulation of the Cell Cycle at Internal Checkpoints
![Internal Checkpoints During the Cell Cycle](../../../../../../../../../figures.boundless-cdn.com/18890/full/figure-10-03-01.jpeg)
Internal Checkpoints During the Cell Cycle
The cell cycle is controlled at three checkpoints. The integrity of the DNA is assessed at the G1 checkpoint. Proper chromosome duplication is assessed at the G2 checkpoint. Attachment of each kinetochore to a spindle fiber is assessed at the M checkpoint.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"OpenStax College, Control of the Cell Cycle. October 16, 2013."
http://cnx.org/content/m44466/latest/Figure_10_03_01.jpg
OpenStax CNX
CC BY 3.0.