Mrs. Kenny/HLIVGenetic Disorders
Trisomy 21
There atomic number 18 many antithetical problems that occur with the chromosomes of a living organism. In some cases, the effects backside pitch a huge impact 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 pair 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 study on Trisomy 21, which is more commonly called downwards Syndrome, began in 1866 when physician John Langdon Down published an essay describing a group of children who were distinctly different from other children with mental retardation. It was first suggested that the cause of Down Syndrome energy involve differences with chromosomes in the 1930s by two patrimonial researchers named Waardenburg and Bleyer. Then, in 1959, two independently working 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 have an unusual facial appearance as well as inborn heart disease.
There are certain ship canal in which a doctor 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 distinctive facial features a soulfulness with Down Syndrome has. A karyotype, which is an observation of the chromosomes, will confirm the bearing of the three paired chromosomes. There is no way to all told rid a person of this disorder. However, with the help of tutoring and therapy, a person with Down Syndrome can succeed in school and conjunction the working world. There is...If you want to get a replete(p) essay, order it on our website: Orderessay
If you want to get a full essay, wisit our page: write my essay .
No comments:
Post a Comment