Recombination, GeneticGenomeHomologous RecombinationGenome, ViralGenome, BacterialBase SequenceCrossing Over, GeneticRad52 DNA Repair and Recombination ProteinMolecular Sequence DataV(D)J RecombinationFimbriae, BacterialMeiosisModels, GeneticMutationIntegrasesDNA RepairChromosome MappingPhylogenySequence Analysis, DNAEvolution, MolecularRad51 RecombinaseGenome, PlantGenome, HumanGene ConversionPili, SexRecombinasesPlasmidsEscherichia coliDNA NucleotidyltransferasesGenetic VariationDNA-Binding ProteinsDNA Breaks, Double-StrandedVDJ RecombinasesFimbriae ProteinsGenome, FungalGenome, MitochondrialDNASaccharomyces cerevisiaeImmunoglobulin Class SwitchingDNA, FungalDNA, BacterialAllelesRepetitive Sequences, Nucleic AcidAmino Acid SequenceChromosomes, FungalAttachment Sites, MicrobiologicalSequence Homology, Nucleic AcidGenetic MarkersRec A RecombinasesGene RearrangementGenetic LinkageChromosomesDNA, ViralDNA HelicasesCrosses, GeneticDNA Transposable ElementsDNA DamageDNA ReplicationCloning, MolecularBacterial ProteinsChromosome PairingImmunoglobulin Joining RegionSequence AlignmentRestriction MappingExodeoxyribonucleasesGenes, RAG-1Gene TargetingGenes, BacterialBacteriophage lambdaGene DeletionSaccharomyces cerevisiae ProteinsImmunoglobulin Switch RegionPolymerase Chain ReactionSelection, GeneticBlotting, SouthernGenome SizeChromosomes, BacterialDNA, Single-StrandedExodeoxyribonuclease VGenotypeCell LineSynaptonemal ComplexRecombinational DNA RepairGenome, ArchaealChromosome InversionGenomicsEndodeoxyribonucleasesMutagenesis, InsertionalPhenotypeGenomic InstabilityMultigene FamilyDNA, CruciformSpecies SpecificityGenome, InsectDNA PrimersGenes, FungalDiploidyNucleic Acid ConformationViral ProteinsBiological Evolution