Chromosome DeletionGene DeletionMolecular Sequence DataSequence DeletionBase SequenceSequence Analysis, DNAPhylogenyExonsPolymerase Chain ReactionAmino Acid SequenceMultigene FamilyCloning, MolecularDNA, BacterialGenes, BacterialMutationMice, KnockoutPhenotypeIntegrasesHomozygoteSaccharomyces cerevisiaeMice, Inbred C57BLDNA Mutational AnalysisBlotting, SouthernRecombination, GeneticChromosome MappingGene Knockout TechniquesHeterozygoteGenotypePedigreeAllelesIn Situ Hybridization, FluorescenceGenetic Complementation TestPlasmidsGenes, EssentialSaccharomyces cerevisiae ProteinsGene TargetingGenes, Fungal