title: Mate choice and genetic structure Sanday, Orkney Islands, Scotland.
mesh_terms: D000293:Adolescent; D000328:Adult; D005006:Ethnicity; D005260:Female; D006579:Heterozygote; D006801:Humans; D008297:Male; D008393:Marriage; D008875:Middle Aged; D008957:Models, Genetic; D011897:Random Allocation; D012606:Scotland; D012725:Sexual Behavior