On the maintenance of polymorphisms having an inviable homozygote.
D001315:Australia; D003550:Cystic Fibrosis / Q000235:genetics; D005298:Fertility; D005787:Gene Frequency; D005804:Genes, Lethal; D005828:Genetics, Population; D006579:Heterozygote; D006720:Homozygote; D006801:Humans; D007585:Jews; D008064:Lipidoses / Q000235:genetics; D011110:Polymorphism, Genetic; D044465:White People