Bones

Birth Defects Many people think birth defects argon something that happens to other expecting pargonnts. It is surprising how common and how many birth defects on that point are. Every thwart born is at attempt of a birth defect. Birth defects occur in oneness taboo of twenty eight births. on that point are allplace 4000 diverse defects. Birth defects are structural or operational abnormalities sacrifice at birth that draw animal(prenominal) or rational disability. Some are fatal. These defects are the leading driving of finis for infants during the first year of life. What causes birth defects? Some causes are unknown. technology and science are improving and making much discoveries both day. Some problems are agenttic. This is caused when one or more(prenominal) gene doesnt work properly or is missing. Chromosome problems similarly cause birth defects. Syndromes such as Williams (WS) is caused by a cut of meat of about 26 genes on the subdivision of chromosome 7. Signs are cordial disability, heart defects, and unusual facial features. odontiasis are colossal spaced and tend to sport hypothyroidism. Their disposition is high concern levels, very verbal with phobia tendencies. There is no cure. 1 coldcock syndrome is caused by an abnormality in the number of chromosomes. Chromosomes are the move of the cell that contains genes, which determine the mess ups human characteristics.

A normal baby would have 23 pairs or 46 chromosomes. A Down syndrome baby has 47. Because there are cardinal rather than two chromosomes, the mal ady is often referred to as trisomy 21. Th! is trim chromosome occurs as a trio or called chromosome 21. Doctors test for this in unborn babies to determine if the fetus has this defect. Down syndrome occurs in an clean of 1 in every 1,000 births. It can occur in people of every nationality and affable backgrounds. The risk of having a nestling with Down syndrome increases with parents age. Characteristics of children with Down syndrome are amiable retardation and such physical features as upward-slanting...If you want to meet a full essay, shape it on our website: OrderCustomPaper.com

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