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Question

When cell has stalled DNA replication fork, which checkpoint should be predominantly activated?
  1. M
  2. G1/S
  3. Both G2 M and M
  4. G2 /M

A
M
B
Both G2 M and M
C
G1/S
D
G2 /M
Solution
Verified by Toppr

When the DNA replication in the S-phase is stalled, the DNA replication and synthesis is not complete. This causes the activation of the G2/M checkpoint which does not allow the cell to enter the G2 and the M phase till the replication is complete.
So, the correct answer is G2/M.

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