Multiple Choice
In the context of control of the eukaryotic cell cycle, what is MPF (maturation-promoting factor)?
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16. Cell Division
Control of the Cell Cycle
Multiple Choice
In the context of control of the cell cycle, what is the primary purpose of checkpoints?
A
To trigger cytokinesis immediately after DNA replication is initiated
B
To verify that key events (such as DNA integrity and proper chromosome attachment) are completed correctly before the cell proceeds to the next phase
C
To increase the speed of the cell cycle by bypassing phases that are not needed
D
To ensure that transcription and translation occur only during mitosis
Verified step by step guidance1
Understand that cell cycle checkpoints are control mechanisms that ensure the proper progression of the cell cycle phases.
Recognize that checkpoints verify critical events such as DNA replication accuracy, DNA integrity, and correct chromosome attachment to the spindle apparatus.
Know that the primary purpose of these checkpoints is to prevent the cell from moving to the next phase until these key events are completed correctly, thus maintaining genomic stability.
Realize that checkpoints do not trigger cytokinesis immediately after DNA replication, nor do they function to speed up the cell cycle by skipping phases.
Also understand that transcription and translation are continuous processes and are not restricted to mitosis, so checkpoints do not regulate these processes specifically during mitosis.
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