Heterozygous advantage and its relationship to increased heterozygote fertility.
D001723:Birth Rate; D002875:Chromosomes; D005190:Family; D005298:Fertility; D005787:Gene Frequency; D005804:Genes, Lethal; D005808:Genes, Recessive; D006579:Heterozygote; D006801:Humans; D008962:Models, Theoretical; D012641:Selection, Genetic