The human X chromosome with<unk>  (green) located at the tip of the long arm of the chromosome. Studies of the X chromosome as well as the entire human genome have linked<unk>  to the heredity of homosexuality in human males.<unk>  is a chromosome band and genetic marker situated at the tip of the X chromosome which has been studied since at least 1980. The band contains three distinct regions, totaling about 8 Mbp of genetic information. The marker came to the public eye in 1993 when studies by Dean Hamer and others indicated a link between the<unk>  marker and male sexual orientation.
Xq28
Dup15q
Distal 18q-
X chromosome
Ring chromosome 18
Ring chromosome 15
Ring chromosome 22
714-X