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Genetic Disorders: Prader-Willi Syndrome

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Prader-Willi Syndrome is a genetic disorder that affects chromosome number fifteen. Some of the common signs of this syndrome are obesity, eyes with narrower shape, small hands, feet and stature. Often the muscle tone is decreased and as a consequence motor development is delayed. Individuals affected usually have mild learning disabilities and only a small portion have average or above average IQs. Their long term memory is stronger and efficient than their short term memory. Most students with Prader-Willi Syndrome have difficulty working with numbers and calculations. They usually perform better when working with reading, writing, drawing, and when working with technology. Behavior issues are directly associated with the syndrome as well …show more content…
This syndrome is caused by a defective or missing X chromosome. Some characteristics presents are shorter stature, webbed neck, swollen hands and feet, low hairline and ears. A portion of the individuals affected by this syndrome also may have heart problems, hearing impairments, scoliosis, and kidney issues. The missing sex chromosome X, affects ovarian development and can cause fertility issues. Most often students with Turner Syndrome will usually do better with reading and speaking skills, while encountering some issues with math and visual/spatial skills. These students may also have difficulties when working with social skills and emotional …show more content…
Some of the characteristics are hearing impairment and vision impairment, such as pigmentosa which progresses with age. There are three types of Usher syndrome. Type I, the individual is profoundly deaf at birth and struggles with maintaining balance. Usually by the age of ten vision problems occur. Type II, individuals with moderate to severe hearing loss at birth and that display typical balance. They are usually able to perform normally at school and may perform even better with the assistance of hearing aids. The rate in which their vision is affected is slower when compared to type I. During puberty the student may start to to have blind spots, which may cause he or she to feel uncomfortable, out of place and/or stressed. Type III, the individual is born with typical hearing and balance. As the student gets older hearing and vision get progressively weaker. Hearing loss may be more obvious or occur during adolesce, followed by blind spots. By the time the individual hits forty-five years or so he or she may be completely

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