stable G1

[adrakdavra]

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On AAMC 10 @ 121

A stable, differentiated cell that will NOT divide again during its lifetime would most likely be found in which of the following stages of the cell cycle?

A) G1
B) G2
C) M
D) S

Answer A.

Shouldn't the answer be G0, and what do we need to know a bout G1, G2 , so the next time I see an MCAT Q about this topic I don't make a mistake
Thanks

 

[gwjib04]

From wikipedia

G0 phase is viewed as either an extended G1 phase, where the cell is neither dividing nor preparing to divide, or a distinct quiescent stage that occurs outside of the cell cycle.

You're right
G0 is more accurate but G1 is close enough

 

[sdm33]

Imagine that you are driving you car and then you get stopped at a checkpoint G1(G0), S, G2 , M

G1 will ask you a few questions, it depends on your answers, you can move to the next stop.

1. Can you divide, if yes you move to S phase and your DNA duplicate
2. If NO , then you delay your division and enter a resting stage called G0 , eg liver cells

You cannot skip checkpoints if you are stuck by a restriction point.

Think of G1/G0 and G2/M and S in between

If they ask what trigger the start of M phase? G2