What is a difference between base excision repair BER and nucleotide excision repair INER:? What is a difference between base excision repair (BER) and nudeotide excision repair NER?? They both do the same repairs but use different enzymes O There are many proteins involved in BER but only one in NER. O BER fixes UV damage, while NER fixes transposon damage O NER occurs in eukaryotes, while BER occurs in prokantoes O BER fixes problems with a single base, while NER fres problems with the shape of the hefix.