Down syndrome

eat Syndrome, a chromo some(prenominal) abnormality is present in either ethnicity, affable economic classes, and g terminateer which is defined as a subjective disorder by an extra chromosome on the chromosome 21 pair. Although in that respect are many theories that hand been positive for the cause of chromosome abnormalities, it is in m not known what in truth causes Down syndrome. Down syndrome was observe and named after a British physician called John Langdon Haydon Down who first studied it in 1866. At first it was called mongolism because Down syndrome people have some physical features that come out like Mongolian. The touch on individuals have upward slanting eyes, a come on of clamber that starts at the inner corner of individually eye. A loggerheaded crease across the sole of all(prenominal) palm and foot, one sort of of two hori zontal furrows on their fifth fingers, slightly form facial features. Their noses tend to be small, the ears are a roundabout small and the upper part of the ear may fold over. They also have short enormous necks and hands with shorter fingers. some Down babies feet appear to have a wide faulting between the first and second toe. The affected person is usually small, 145-160 cm for adults. Birth weight is usually 10-20 % below normal. intellectual retardation (100 %) becomes evident at the end of first course of study of life. The erudition quotient in adults is most often below 50, although some are believed to have moderate intelligence with normal IQ. Usually, the babe is happy, affable, and affectionate; though walking; speech communication and cloaca training delayed until 2 to 3 long time of age. They may have delayed puberty and early meno pause. plain so the affected women can! still have children unless for the most part the men cannot. In Human development, our cells usually have 46 chromosomes and divide in two ways. The first... If you loss to get a full essay, order it on our website: OrderEssay.net

If you want to get a full information about our service, visit our page: write my essay