Is 47, XYY syndrome inherited ?
Is 47, XYY syndrome inherited? 47, XYY syndrome is usually not inherited. It is typically due to a random event during the formation of a sperm cell. Recurrence of 47, XYY syndrome in a family is rare. The recurrence risk for siblings and other family members is not thought to be increased. Additionally, men with 47, XYY are not reported to have an increased risk for a child with a chromosome variation. People with personal questions about recurrence risks are encouraged to speak with a genetic counselor or other genetic professional.