Question

when cell has stalled DNA replication fork, which check point should be predominantly activated
a G1/S
b G2/M
c M
d. both G2/M and M​

Answer 1

Answer:

a)G1/S

Stalled forks activate checkpoint signaling and pause replication. Since, ` G_(1)`/ 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.

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