This syndrome affects males. It usually occurs during birth. Males usually live without knowing they have it. XYY syndrome is a disease that makes you very tall. XYY syndrome is a genetic condition in which a human male has an extra male (Y) chromosome, giving a total of 47 chromosomes instead of the more usual 46. This produces a 47,XYY karyotype, which occurs every 1 in 1,000 male births.en.wikipedia.org/wiki/XYY_syndrome Xyy syndrome was discovered by a man named Sandberg in 1961.This disease increases your height.Most of these cases are due to a cell-division error in the sperm prior to conception known as "non-disjunction."www.everydayhealth.com You are born with the disease.This …show more content…
And many issues improve within a few years.Xyy syndrome can’t be treated but there are therapies.
How the disorder is diagnosed
Since there is often no medical reason to test for XYY syndrome, the diagnosis is commonly never made.Kaiser Permanente reports that 88 percent of males with XYY syndrome are never diagnosed because there are few or no problematic symptoms. A diagnosis can be made before birth while a baby is still in the mother's womb.About 5 percent of boys with XYY are identified through prenatal testing.XYY syndrome is generally diagnosed when prenatal karyotyping is done for the detection of Down syndrome and other major conditions.
How many and what type of people are likely to have the disorder
It only affects males not females.Approximately one in one thousand live births.It only occurs in birth.XYY syndrome is the result of a random mix-up, or mutation.During the creation of a male’s genetic