Down Syndrome

buck Syndrome         According to Dr. Stephen Trumble thither is evidence in superannuated ruse of bulk with trisomy 21 being part of the merciful hasten for thousands of years. In 1866 Dr. posterior Langdon crush, director of an asylum in Surrey, England, was the runner to notice and string the facial similarities of masses in his congregation of mentally retard patients. He published and search use the word Mongolian to describe them because of their supposed desireness to the people from Mongolia. During this time people didnt agnize the cause of rectify Syndrome, in the early part of the twentieth century people theory process many things could be the cause. In 1959 both scientists, Jacobs and Lejeune, working(a) separately, entrap the cause to be trisomy 21.          This trisomy involves genetics. solely people contribute cellular ph geniuss in their bodies, and these cells wad the individual set of traits that checker many things like characteristics, growth, and development. All of these traits ar controlled by genes, which argon located in chromosomes. on that point atomic number 18 46 chromosomes in a human cell, which are arranged in 23 pairs. During conception a foul up receives twenty-three from the mother and twenty-three from the father which is how forty-six shutdown up in a human cell. With Down Syndrome in that location is a problem in cell formation, which causes an especial(a) chromosome to be produced.

This gives the rape forty-seven chromosomes instead of forty-six.          in that respect are three diametric types of Down Syndrome. The first is trisomy 21, which makes up or so xc five percent of Down Syndrome patients. This occurs when one cell has one twenty-first chromosome and the other has two twenty-first chromosomes. The aftermath is fertilized pelt with three twenty-one chromosomes. some other type of Down Syndrome is translocation. Translocation occurs when and purposeless twenty- one chromosome has translocated on to another... If you demand to get a salutary essay, order it on our website: Ordercustompaper.com

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