Inversion polymorphism in a two-locus genetic system.
D000818:Animals; D002869:Chromosome Aberrations; D002874:Chromosome Mapping; D003434:Crossing Over, Genetic; D004330:Drosophila; D008040:Genetic Linkage; D006579:Heterozygote; D008954:Models, Biological; D011110:Polymorphism, Genetic; D011336:Probability