title: Horse, ass, and mule chromosomes.
abstract: Karyotypes of the horse with 64 chromosomes, the ass with 62 chromosomes, and the mule with 63 chromosomes are presented. The chromosome complements of each species and their mule hybrid are analyzed and compared.
mesh_terms: D000818:Animals; D002875:Chromosomes; D006736:Horses; D007621:Karyotyping; D010527:Perissodactyla; D013045:Species Specificity