title: Genetic analysis of geotactic and phototactic behavior in selected strains of Drosophila pseudoobscura.
mesh_terms: D000818:Animals; D004330:Drosophila / Q000502:physiology*; D005260:Female; D005796:Genes; D005824:Genetics, Behavioral; D005838:Genotype; D006112:Gravitation; D006824:Hybridization, Genetic; D008027:Light; D008297:Male; D009068:Movement; D009949:Orientation; D012641:Selection, Genetic; D012730:Sex Chromosomes