Trisomy 21

Tara Purcell2.17.11 Mrs. Kenny/HLIVGenetic Disorders Trisomy 21 thither atomic number 18 legion(predicate) antithetical problems that occur with the chromo mosts of a living organism. In around cases, the effects backside pitch a huge stir on a mortals life. Trisomy 21 is one of these disorders. It is featd by a malfunction in the chromosomes during reproduction. When a baby is being made, the chromosomes twin off with separately other, creating the genotypes of that organism. Even if one single chromosome is flipped or switched, it can nominate severe mental and physical defects. The knowledge on Trisomy 21, which is more commonly called downwards Syndrome, began in 1866 when medico John Langdon Down published an essay describing a aggroup of children who were distinctly different from other children with mental retardation. It was first suggested that the own of Down Syndrome energy involve differences with chromosomes in the 1930s by two patrimonial re searchers named Waardenburg and Bleyer. Then, in 1959, two independently functional geneticists, Lejeune and Jacobs, discovered 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 ask an unusual facial appearance as well as inborn heart disease. There argon certain ship canal in which a concern can detect that a child that may have Down 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 determine it by the characteristic facial features a soul! fulness with Down Syndrome has. A karyotype, which is an remark of the chromosomes, will confirm the bearing of the three paired chromosomes. There is no way to all told rid a soulfulness of this disorder. However, with the help of tutoring and therapy, a person with Down Syndrome can conform to in school and conjunction the working world. There is...If you inadequacy to get a replete(p) essay, order it on our website: OrderEssay.net

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