Cell Division Flashcards
1
Q
What stages are in the cell cycle?
A
- Interphase
- M phase
2
Q
What stages are in the stage interphase?
A
- Gap phase 1 (G1)
- Gap phase 2 (G2)
- Synthesis
3
Q
What stages are in M phase?
A
- Mitosis
- Cytokinesis
4
Q
How is the cell cycle regulated?
A
With checkpoints at key points during the cycle
5
Q
What are the 2 main checkpoints?
A
- G1/S checkpoint (restriction point)
- G2/M checkpoint
6
Q
What is the purpose of checkpoints?
A
- Prevent uncontrolled cell division that would lead to tumours
- Detect and repair damaged DNA
7
Q
What does the molecular events that control the cell cycle happening in a specific order ensure?
A
- That the cell cycle cannot be reversed
- That the DNA is only duplicated once during each cell cycle
8
Q
What happens during M phase?
A
- Cell growth stops
- Nuclear division (mitosis)
- Cytokinesis
