Can you have XXY chromosomes?
Klinefelter syndrome is a genetic condition in which a boy is born with an extra X chromosome. Instead of the typical XY chromosomes in men, they have XXY, so this condition is sometimes called XXY syndrome.
What is the life expectancy of a person with Klinefelter syndrome?
According to research, Klinefelter syndrome can shorten your life expectancy up to two years. However, you can still live a long, full life with this condition. The earlier you get treatment, the better your outlook will be.
What diseases are caused by chromosomal mutations?
But the mutations we hear about most often are the ones that cause disease. Some well-known inherited genetic disorders include cystic fibrosis, sickle cell anemia, Tay-Sachs disease, phenylketonuria and color-blindness, among many others. All of these disorders are caused by the mutation of a single gene.
What genetic disorder is missing a chromosome?
Deletions: A portion of the chromosome is missing or deleted. Known disorders in humans include Wolf-Hirschhorn syndrome, which is caused by partial deletion of the short arm of chromosome 4; and Jacobsen syndrome, also called the terminal 11q deletion disorder.
What is chromosome X disorder?
The X chromosome carries around 2000 genes and makes up about 5% of the total DNA in women and 2.5% in men. Alterations or mutations of these genes leads to disorders that are termed X-linked diseases. Disorders that arise from additional, missing or structurally altered copies of the X chromosome are termed numerical disorders.
What does it mean if baby has an extra chromosome?
An individual born with an extra chromosome may be able to function fairly normally. Babies born with trisomy 21 have a condition known as Down syndrome. Intestinal blockages may occur as a result of someone having an extra chromosome. Each chromosome is made of protein and a single molecule of DNA.