XYY Syndrome

xyy syndrome

Symptoms and Quality of Life

Causes

Sources

Solutions

Commonality and Probability of Inheritance

Breakthroughs

a karyotype of an xyy syndrome patient, displaying their extra y sex chromosome.

A genetic disorder occuring only in males.

- Learning disabilities - Speech and language skill disabilities - Severe behavioral problems - Emotional difficulties - Weak motor skills (including walking, sitting, running) - Weak muscles - Additional height - Increases in acne

- Occurs during production of male gametes, or sperm cells. - Nondisjunction in meiosis II. - Resulting unequal distribution of Y chromosomes among daughter cells. - Sperm cells produced with extra Y chromosome may fertilize egg, in which case child would have XYY Syndrome.

men with xyy syndrome can be significantly taller than most men.

There are no medical cures or treatment for xyy syndrome. The only "solution" is for xyy patients with learning disabilities is to provide them special education, and other programs created for their disabilities.

About 1 in 1,000 boys is born with XYY Syndrome, or about 5 to 10 newborn boys per day.

- XYY Syndrome was discovered in 1961. - Unfortunetely, there have any been many breakthroughs in developing solutions. - However, we have gained a better understanding of XYY Syndrome. - We understand symptoms. - We even understand have studies which claim to show that the majority of tall criminals in jails have XYY. - These studies regarding crime, if accurate, lead us to believe that XYY severely increases mental irrationality.

"47, XYY Syndrome." Genetics Home Reference. Available from http://ghr.nlm.nih.gov/condition=47xyysyndrome. Internet; accessed 6 November 2009.

Beltz, Carin Lea. "XYY Syndrome Health Article." Healthline. Available from http://www.healthline.com/galecontent/xyy-syndrome-1. Internet; accessed 6 November 2009.

"XYY Syndrome." KS&A. Available from http://www.genetic.org/knowledge/support/action/201/#Other Resources for Individuals and Families Dealing with 47,XYY. Internet; accessed 6 November 2009.

watch meiosis. nondisjunctioncausing xyy syndrome occurs in meiosis II.

Daniel Elkind