When the cell has stalled DNA replication, which check point should be predominantly activated ?

G_{1} / S

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G_{2} / G_{0}

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G_{2} / M

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M

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Solution

The correct option is A $G_{1} / S$
Stalled forks activate checkpoint signaling and pause replication. Since, G1/S checkpoint checks DNA damage, cells size prior to S-phase (i.e. DNA replication phase). This checkpoint would be activated by stalled DNA replication fork.

So, the correct answer is 'A'.

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Similar questions

Which phase comes in between the G₁ and G₂ phases of the cell cycle?

During which phase(s) of cell cycle, amount of DNA in a cell remains at 4C level if the initial amount is denoted as 2C?

a.	$G_{1}$ phase	i.	Replication of DNA
b.	S-phase	ii.	Quiescent stage
c.	$G_{2}$ -phase	iii.	Condensation chromatin
d.	$G_{0}$ -phase	iv.	Protein synthesis
		v.	Interval between mitosis and initiate of DNA replication

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