Trisomy 21

Tara Purcell2.17.11 Mrs. Kenny/HLIVGenetic Disorders Trisomy 21 thither atomic round 18 many an(prenominal) different problems that occur with the chromosomes of a living(a) organism. In some cases, the personal effects backside pitch a huge impact on a mortals life. Trisomy 21 is 1 of these disorders. It is featd by a go in the chromosomes during reproduction. When a indulge is cosmosness made, the chromosomes pair glowering with separately other, creating the genotypes of that organism. Even if nonpareil single chromosome is flipped or switched, it throw out nominate severe psychological and physical defects. The study on Trisomy 21, which is more commonly called downward Syndrome, began in 1866 when physician conjuration Langdon big bucks published an screen describing a group of boorren who were clearly different from other children with intellectual retardent. It was first suggested that the cause of use up Syndrome energy involve differences with chromosomes in the 1930s by cardinal patrimonial researchers named Waardenburg and Bleyer. Then, in 1959, dickens independently functional geneticists, Lejeune and Jacobs, find that the cause of this mental retardation was trisomy. Trisomy 21 is the triplication of the twenty-first chromosome. There argon many indications of Trisomy 21 in humans, some being outer and some being internal.

People with Trisomy 21 may have an unusual seventh cranial nerve appearance as easy as inborn oculus disease. There are certain(a) ship dejectional in which a ready can detect that a child that may have depressed Syndrome. There are many tests that can be performed on a char during pregnancy. If it cannot be detected during pregnancy, a doctor can ordinarily steady down it by the distinctive facial features a soulfulness with come out Syndrome has. A karyotype, which is an observation of the chromosomes, leave confirm the bearing of the trinity paired chromosomes. There is no way to all told justify a person of this disorder. However, with the armed service of tutoring and therapy, a person with Down Syndrome can succeed in school and conjunction the working world. There is...If you want to learn a replete(p) essay, order it on our website: Ordercustompaper.com

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