Tuesday, January 28, 2014

This is an essay On prader-willi syndrome. It is in depth and fills a solid three pages. 820 words

Prader-Willi Syndrome         Prader-Willi syndrome (PWS) is a genetic dis methodicalness that causalitys low muscle stones thumb (floppiness), short stature, cognitive disabilities (mental retardation), behavioral problems, and chronic hunger that commode lead to over-eating and life threatening obesity. The disorder is usually causal agentd by an error during sperm and clod abidanceation, not passed on from protect to child like or so genetic complaints. This makes the disease intimately impossible to detect in the p bents (only 5% of the time) (Cassidy). The disorder is considered rare, only if occurs in 1 out of every(prenominal) 14,000 people, making it the most customary genetic disorders, and the most unwashed genetic cause of obesity.         The disorder is linked with the 15th chromosome, in a diminished section labeled 15q11-q13. Scientists do not bed exactly how many genes and which specific ones are involved, scarcely th ey do know the cause of the abnormalities.         70% of all cases of PWS are caused by maternal(p) deletion. This makes it the most common form of the disorder. The cause is; cancel of chromosome 15 inherited from the father (the part containing the PWS little genes) is missing. typic deletions are now classified as character reference 1 or Type 2, depending on the size. Deletion happens for manifestly no reason, and has a less than 1% chance of recurring).         25% of cases are cause by Maternal uniparental disomy. This less common form of PWS happens when both copies of chromosome 15 are inherited from the get (hence, Uniparental). In these cases, the developing embryo starts out with three copies of chromosome 15, because the mothers egg had an limited one. Later, one of the three is lost (the fathers), and has the same tack together as deletion. When the whole chromosome is deleted, it usually leads to other genetic disorders as well.         5% of cases are caused..! . If you want to get a estimable essay, order it on our website: OrderCustomPaper.com

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