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Questions and Answers
What is the average duration of the cell cycle in rapidly dividing human cells?
What is the average duration of the cell cycle in rapidly dividing human cells?
- 24 hours (correct)
- 48 hours
- 12 hours
- 36 hours
What is the approximate duration of the G1 phase in rapidly dividing human cells?
What is the approximate duration of the G1 phase in rapidly dividing human cells?
- 12 hours
- 6 hours
- 15 hours
- 9 hours (correct)
What type of cells can spend their entire lifetime in the G0 phase?
What type of cells can spend their entire lifetime in the G0 phase?
- Epithelial cells
- Muscle cells
- Stem cells
- Cortical neurons (correct)
What is the approximate duration of the M phase in rapidly dividing human cells?
What is the approximate duration of the M phase in rapidly dividing human cells?
What factors control the timing of events in the cell cycle?
What factors control the timing of events in the cell cycle?
In which type of cells is the cell cycle duration highly variable?
In which type of cells is the cell cycle duration highly variable?
What is the primary function of cyclin-dependent kinases (Cdks) in the cell cycle?
What is the primary function of cyclin-dependent kinases (Cdks) in the cell cycle?
During which phase of the cell cycle are the cyclin proteins that were active in the previous stage degraded?
During which phase of the cell cycle are the cyclin proteins that were active in the previous stage degraded?
What is the correlation between cyclin accumulation and the three major cell cycle checkpoints?
What is the correlation between cyclin accumulation and the three major cell cycle checkpoints?
What triggers the increase in concentration of cyclin proteins?
What triggers the increase in concentration of cyclin proteins?
What is the purpose of the internally controlled checkpoints in the cell cycle?
What is the purpose of the internally controlled checkpoints in the cell cycle?
How many cyclin proteins are involved in the regulation of the cell cycle?
How many cyclin proteins are involved in the regulation of the cell cycle?
What happens to cell division when there is a lack of human growth hormone?
What happens to cell division when there is a lack of human growth hormone?
Why does a cell divide as it grows in size?
Why does a cell divide as it grows in size?
What is the purpose of cell cycle checkpoints?
What is the purpose of cell cycle checkpoints?
At which stage of the cell cycle is the integrity of DNA assessed?
At which stage of the cell cycle is the integrity of DNA assessed?
What happens when there is too much human growth hormone?
What happens when there is too much human growth hormone?
What is the cause of crowding of cells inhibiting cell division?
What is the cause of crowding of cells inhibiting cell division?
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