What does trisomy X do?
What does trisomy X do?
Delayed development of speech and language skills, as well as motor skills, such as sitting up and walking. Learning disabilities, such as difficulty with reading (dyslexia), understanding or math. Behavioral problems, such as attention-deficit/hyperactivity disorder (ADHD) or symptoms of autism spectrum disorder.
What causes trisomy X syndrome?
Trisomy X is a genetic disorder, but it is not inherited. The presence of the extra X chromosome results from sporadic, random errors during the normal division of reproductive cells in one of the parents (nondisjunction during meiosis). Studies suggest that the risk of such errors increases with advanced maternal age.
Does triple X syndrome affect life expectancy?
What is the prognosis for girls and women with triple X syndrome? Girls and women with triple X syndrome can lead normal lives. In many cases, there are no problems with sexual development or fertility. In general, early diagnosis and intervention can help to reduce developmental delays.
What causes trisomy X?
The origin of Trisomy X Syndrome is due to a genetic process that is caused by a defective egg or sperm cell. Since, in some cases, not all the cells contain an additional X chromosome , the proportion of such abnormal cells to normal cells, creates a mosaic pattern, where only a certain percentage of cells are affected.
How is trisomy X diagnosed?
Identification of characteristic neurodevelopmental,behavioral,or learning disabilities
What is the difference between a trisomy and monosomy?
As nouns the difference between monosomy and trisomy. is that monosomy is a genetic disorder with the presence of only one chromosome (instead of the typical two in humans) from a pair while trisomy is (cytology) the presence of three copies, instead of the normal two, of a particular chromosome of an organism.