Population of Chittenden County, Vermont: Compare population statistics about Chittenden County, VT by race, age, gender, Latino/Hispanic origin etc. CensusViewer delivers detailed demographics and population statistics from the 2010 Census, 2000 Census, American Community Survey (ACS), registered voter files, commercial data sources and more.
Klinefelter syndrome is the most common sex-chromosome abnormality, affecting about one in every 500 to 700 men. What causes Klinefelter syndrome? The addition of extra chromosomes seems to occur by chance. The syndrome is not inherited from the parents. The addition occurs in the sperm, the egg, or after conception. What are the signs and symptoms of Klinefelter syndrome? Signs and symptoms can vary.
What is the cause of the chromosome aberration in Klinefelter's syndrome? Certain chromosome aberrations appear more frequently in children of elderly mothers and, to a certain extent, also elderly fathers, but this is not the case of Klinefelter's syndrome, and today nothing definite is known about causes leading to an increase in the number of X-chromosomes as found in Klinefelter's syndrome.