What is an Xyy person?
XYY syndrome is a genetic condition in which a male has an extra Y chromosome. There are usually few symptoms. These may include being taller than average, acne, and an increased risk of learning problems. The person is generally otherwise typical, including typical rates of fertility.
What happens if you have Xyy?
The extra X and/or Y chromosome can affect physical, developmental, behavioral, and cognitive functioning. Common physical features may include tall stature, lack of secondary pubertal development, small testes (hypogonadism), delayed pubertal development, and breast development (gynecomastia) in late puberty.
Are people with XYY syndrome fertile?
Fertility Effects Many men with 47,XYY karyotype are fertile in spite of their sex chromosome abnormalities. Some researchers have suggested that the extra Y chromosome is lost before meiosis,3,6–8 thus conserving fertility in these patients.
Why is XYY syndrome called Jacob’s syndrome?
Males with XYY syndrome have 47 chromosomes because of the extra Y chromosome. This condition is also sometimes called Jacob’s syndrome, XYY karyotype, or YY syndrome.
Are XYY males sterile?
Nonmosaic 47, XYY syndrome is an aneuploidy of sex chromosomes. It is often associated with male infertility. In our study the incidence rate was 0.1% (21/19,842) which is in accordance with a previously reported incidence rate.
How long do people with XYY syndrome live?
The median age of survival was 77.9 years for controls and 67.5 years for 47,XYY persons, corresponding to a loss of median lifespan of 10.3 years.
Who are some famous people with Klinefelter syndrome?
Two of the most famous people that suffered from klinefelter syndrome were George Washington artist Lili Elbe.
What is the genotype of person with Klinefelter’s syndrome?
Klinefelter syndrome is found in male which genotype has 47 number of chromosomes such as 44+XXY ( presence of one extra X chromosome) leading to symptom like sterility in male. However Turner syndrome is found in female which genotype has 45 number of chromosome such as 44+XO ( lacking of one X chromosome) leading to symptom like sterility in female.
Can people with Klinefelter syndrome work?
If you have Klinefelter syndrome, you may benefit from these self-care measures: Work closely with your doctor. Appropriate treatment can help you maintain your physical and mental health and prevent problems later in life, such as osteoporosis. Investigate your options for planning a family.
What is double Y syndrome?
Double-Y syndrome is a genetic mutation present in some males in the 22nd century. Specifically, it is a deformity of the X/Y chromosome pair, resulting in the YY pattern.