Section I Cellular Responses to Mutagenic Agents. - 1 Mutagenesis from a Chemical Perspective: Nucleic Acid Reactions Repair Translation and Transcription. - 2 Regulation and Functions of Escherichiacoli Genes Induced by DNA Damage. - 3 Methylation-Instructed Mismatch Correction as a Postreplication Error Avoidance Mechanism in Escherichiacoli. - 4 Cellular Defense Mechanisms Against Alkylation of DNA. - 5 Cellular Responses to Mutagenic Agents: A Summary and Perspective. - Section II Mutagenesis at Specific Sites. - 6 Mechanisms of UV Mutagenesis in Yeast. - 7 Site-specific Mutagenesis: A New Approach for Studying the Molecular Mechanisms of Mutation by Carcinogens. - 8 Single-Stranded Gaps as Localized Targets for In Vitro Mutagenesis. - 9 Mutagenesis at Specific Sites: A Summary and Perspective. - Section III Mutators Antimutators and DNA Replication Errors. - 10 Polymerase Infidelity and Frameshift Mutation. - 11 In Vitro Replication of Mutagen-Damaged DNA: Sites of Termination. - 12 Depurination of DNA as a Possible Mutagenic Pathway for Cells. - 13 Passive Polymerase Control of DNA Replication Fidelity: Evidence Against Unfavored Tautomer Involvement in 2-Aminopurine-Induced Base-Transition Mutations. - 14 Mutators Antimutators and DNA Replication Errors: A Summary and Perspective. - Section IV Transposable Elements and Spontaneous Mutation. - 15 Low Level and High Level DNA Rearrangements in Escherichiacoli. - 16 Mutants of Escherichiacoli K12 Which Affect Excision of Transposon TN10. - 17 Gene Conversion: A Possible Mechanism for Eliminating Selfish DNA. - 18 Transposons and Illegitimate Recombination in Prokaryotes: A Summary and Perspective. - Section V Chromosomal and Nonchromosomal DNA. - 19 Mutagenesis and Repair in Yeast Mitochondrial DNA. - 20 Alterations in Chromatin Structure During DNA Excision Repair. - 21 New Approaches to DNA Damage and Repair: The Ultraviolet Light Example. - 22 Chromosomal and Nonchromosomal DNA: A Summary and Perspective. - Section VI Mutagenesis: Future Directions. - 23 Comparison of the Induction of Specific Locus Mutations in Wild-Type and Repair-Deficient Strains of NeurosporaCrassa. - 24 Mammalian Mutagenesis: Future Directions. - 25 Perspectives in Molecular Mutagenesis. - Contributors. Language: English