Question

Any sort of damage to DNA is detected in the

• A. S phase
• B. M phase
• C. G2 phase
• D. All of the above

Answer 1

The correct option is A S phase

Damage to DNA is detected and fixed during S-phase. When the replication fork comes in contact with the damaged DNA, a protein kinase is activated. This protein kinase stabilizes the replication fork to keep it open so that damage in DNA can be fixed and prevents mitosis.

So, the correct answer is option A.