An introduction to the rare genetic disorder which affects males due to an extra y chromosome xyy

Intelligence is usually in the normal range, although IQ is on average points lower than siblings. The term originated from research gathered from studies done on prisoners.

Reading assessment should occur by school age to rule out dyslexia. Such treatment may require interdisciplinary efforts of health care professionals, including pediatricians, surgeons, cardiologists, ophthalmologists and other health care partners.

Most cases of XYY syndrome are due to a cell division error in the sperm prior to conception. Thus, males with this condition are often undiagnosed or misdiagnosed. Males normally have one X and one Y chromosome.

Other problems associated with Sotos syndrome include jaundice in newborns, curved spine scoliosisseizures, crossed eyes strabismusconductive hearing loss, congenital heart defects, kidney abnormalities and behavioral problems.

Recent studies have shown that this is not the case. Affected Populations XYY syndrome is a rare chromosomal disorder present at birth that affects only males.

During amniocentesis, a sample of fluid that surrounds the developing fetus is removed and analyzed, while CVS involves the removal of tissue samples from a portion of the placenta. Connective tissue is found all over the body and multiple organ systems may be affected in individuals with Marfan syndrome.

The condition is also known as a 47 XYY karyotype ; people normally have a karyotype of 46 chromosomes. Mosaic trisomy 22 is characterized by an extra copy of the chromosome 22 trisomy in some of the body cell populations. Investigational Therapies Information on current clinical trials is posted on the Internet at www.

It is caused by the presence of an extra Y chromosome. Reading difficulties are common due to an increased incidence of dyslexia. Although the first years of school may be more challenging for boys with XYY syndrome, they generally go on to lead full, healthy, and normal lives.

For the rest of those diagnosed after childbirth, around half are diagnosed during childhood or adolescence due to developmental delays or learning difficulties. Atrial septal defects and ventricular septal defects are the most common cardiac malformations for these patients.

XYY syndrome

Rarely, the cell division error occurs after conception resulting in a mosiac of cells with 46 chromosomes and 47 chromosomes. However, the disorder is often characterized by 1 growth and developmental delays, 2 asymmetric body development, and 3 congenital heart diseases.

However, individuals with this syndrome have one X and two Y chromosomes. Introduction Mosaic trisomy 22 was first described by Schinzel in Most cases of XYY syndrome are due to a cell division error in the sperm prior to conception.

XYY Syndrome

However, individuals with this syndrome have one X and two Y chromosomes. Major symptoms include overgrowth of the long bones of the arms and legs, abnormal side-to-side curvature of the spine scoliosisindentation or protrusion of the chest wall pectusdislocation of the lenses of the eyes ectopia lentisnearsightedness myopiawidening aneurysm and tear dissection of the main artery that carries blood away from the heart aortafloppiness of the mitral valve mitral valve prolapse and backward flow of blood through the aortic and mitral valves aortic and mitral regurgitation.XYY syndrome is a rare chromosomal disorder caused by the presence of an extra Y chromosome.

Normally, males have 46 chromosomes including one X and one Y chromosome. Males with XYY syndrome have 47 chromosomes, two of which are Y. XYY syndrome (also known as Jacobs syndrome) is a genetic condition, when males have an extra Y chromosome.

Humans have 46 chromosomes- 22 pairs of somatic chromosomes and 1 pair of sex chromosomes. The female karyotype is XX, but male- XY. males with an extra X chromosome, phenotypically male with female features - typically infertile Marfan Syndrome dominant genetic disorder of the connective tissue, affected Abraham Lincoln, defects to the heart, lungs, eyes, and spine.

People typically have two sex chromosomes in each cell: females have two X chromosomes (46,XX), and males have one X and one Y chromosome (46,XY). Most often, Klinefelter syndrome results from the presence of one extra copy of the X chromosome in each cell (47,XXY). XYY syndrome is a genetic condition in which a male has an extra Y chromosome.

Symptoms are usually few. [3] They may include being taller than average, acne, and an increased risk of learning problems. XYY Syndrome, better known as the Jacob Syndrome is a rare genetic disorder which affects males due to an extra Y chromosome. Healthy males have 46 chromosomes including one X and one Y chromosome.

Men with XYY syndrome have 47 chromosomes, two of which are Y chromosomes.

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An introduction to the rare genetic disorder which affects males due to an extra y chromosome xyy
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