Which of the following is true about base excision repair (BER) in bacteria?
A. BER is used to repair abasic sites created by hydrolysis or by DNA glycosylases.
B. BER requires the action of a unique exinuclease activity to cleave 5' of the abasic site.
C. At the nick created by the nuclease, Pol III can excise the damaged strand by nick translation.
D. BER can be used to excise benzopyrene adducts.
E. BER requires binding of the MutS protein to identify the abasic site.
A
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