The Cell Cycle Flashcards
Roughly how long is a cell cycle?
12 hours
What are cycling cells?
Cells that divide continuously at regular intervals
What are the 3 stages of interphase?
G1 > S > G2
How long after mitosis does S phase begin?
8 hours
How long does S phase take to complete?
7-8 hours
What process occurs during S phase?
DNA replication
What occurs during G1 phase?
G1 occurs between the end of mitosis and beginning of S phase.
Cells respond to growth factors, initiating another cycle.
Most molecular machinery required to complete another cycle is generated.
What occurs during the G0 phase?
The G0 phase consists of quiescent cells that do not enter S phase.
What can stimulate a cell to leave the G0 phase and re-enter the cell cycle ?
Growth factors
How is tumour formation prevented in G1 stage?
What occurs during the G2 phase of interphase?
