What Is the Correct Order for the Following Events in Excision

question 71

Multiple Choice

What is the correct order for the following events in excision repair of DNA? (1) DNA polymerase I adds correct bases by 5'to 3' replication.
(2) Damaged bases are recognized.
(3) DNA ligase seals the new strand to existing DNA.
(4) Part of a single strand is excised.

• A) 1,2,3,4
• B) 2,1,3,4
• C) 2,4,1,3
• D) 3,4,2,1
• E) 4,2,3,1

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