Genetic Complementation TestMutationGenes, BacterialMolecular Sequence DataSocial DominanceDominance, OcularEscherichia coliPhenotypeCloning, MolecularChromosome MappingPlasmidsAmino Acid SequenceAllelesGenesBase SequenceCrosses, GeneticBacterial ProteinsMutagenesis, InsertionalOperonRestriction MappingDNA Transposable ElementsDNA, BacterialSaccharomyces cerevisiaeGenes, LethalGenes, RegulatorRecombination, GeneticDominance, CerebralTemperatureArabidopsisColiphagesSuppression, GeneticGenes, PlantTransduction, GeneticDrosophila melanogaster