Genetic basis for the determination of sex.
D000483:Alleles; D000663:Amphibians; D000818:Animals; D001717:Birds; D002415:Cats; D003582:Cytogenetics; D005260:Female; D005399:Fishes; D005823:Genetics; D006238:Haploidy; D006579:Heterozygote; D006720:Homozygote; D006801:Humans; D006824:Hybridization, Genetic; D008297:Male; D051379:Mice; D010641:Phenotype; D012641:Selection, Genetic; D012730:Sex Chromosomes; D012732:Sex Determination Analysis; D012744:Sex Ratio