This volume provides detailed coverage of modern methods for molecular analysis of enzymes and enzyme systems that function in the maintenance of genome integrity. Coverage areas include base excision repair, nucleotide excision repair, translesion DNA polymerases, mismatch repair, genetic recombination, and double strand break repair. *A laboratory standard for more than 40 years*Over 400 volumes strong*Also available on ScienceDirect*Part A of a 2-part series