Which of the following is not a step in bacterial nucleotide excision repair (NER)?

A. The UvrA2UvrB complex creates a single-stranded bubble at the damage site to which UvrA subunits are tightly bound and the UvrB subunit dissociates.
B. The UvrA2UvrB complex scanned the DNA for damage.
C. Pol I fills the gap created by the removal of the damaged strand and the DNA is sealed by ligase.
D. UvrC (exinuclease) nicks the damaged strand on one side of the damage randomly.
E. UvrD (helicase) unwinds and releases the damaged strand.


D

Biology & Microbiology

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