The Navajo Indians are the largest federally recognized Native American Indian tribe in the United States. Their reservation is spread out through out the four corners of Arizona, New Mexico, Utah and Colorado. The Navajo use the name Dine because it refers to a term from the Navajo language that means people.
Males with Klinefelter's syndrome have two X chromosomes (47,XXY), in rare cases three (48,XXXY) or four (49,XXXXY) X-chromosomes. The X-chromosomes carry genes in terms of development of testicles, sex hormone production and physical sex development in general as well as to a certain extent also height growth.
Klinefelter syndrome (KS) also known as 47,XXY or XXY, is the set of symptoms that result from two or more X chromosomes in males. The primary feature is sterility. Often symptoms may be subtle and many people do not realize they are affected.