title: New families, one with two recombinants for estimation of recombination between the deutan and protan loci.
mesh_terms: D003117:Color Vision Defects / Q000235:genetics*; D005006:Ethnicity; D005163:Factor Analysis, Statistical; D005828:Genetics, Population; D005858:Germany; D006801:Humans; D008297:Male; D010375:Pedigree; D011995:Recombination, Genetic; D012730:Sex Chromosomes; D014687:Venezuela