Which of the Following Statements About Mismatch Repair of DNA

Multiple Choice

Which of the following statements about mismatch repair of DNA is true?

A) The DNA is scanned for any base-pairing mismatches after methyl groups are added to guanines.
B) Errors in replication made by DNA polymerase are corrected on the unmethylated strand.
C) All abnormal bases are always removed.
D) Repairs from damage caused by high-energy radiation are made.
E) Mismatch repair occurs as each strand of DNA is being replicated.