A) The mismatch repair system
B) DNA polymerase
C) Excision repair
D) SOS repair
Correct Answer: B
Solution :
[b] First repair of mistakes made during DNA replication is made by DNA polymerase. DNA polymerase can make mistakes while adding nucleotides. It edits the DNA by proofreading every newly added base. Incorrect bases are removed and replaced by the correct base.
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