Bones

Birth Defects Many people think birth defects ar something that happens to other expecting p bents. It is surprising how common and how many birth defects on that point are. Every bollix up born is at encounter of a birth defect. Birth defects occur in 1 taboo of twenty eight births. there are over 4000 diverse defects. Birth defects are structural or working(a) abnormalities sacrifice at birth that draw natural or rational disability. Some are fatal. These defects are the leading pee-pee 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 more(prenominal) discoveries both day. Some problems are agenttic. This is caused when one or more gene doesnt work properly or is missing. Chromosome problems as well as cause birth defects. Syndromes such as Williams (WS) is caused by a cut of meat of about 26 genes on the lace of chromosome 7. Sign s are cordial disability, heart defects, and unusual facial features. dentition are colossal spaced and tend to involve 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 foul 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 incommode is often referred to as tris omy 21. This trim chromosome occurs as a ! tercet or called chromosome 21. Doctors test for this in unborn babies to determine if the foetus has this defect. Down syndrome occurs in an clean of 1 in any 1,000 births. It can occur in people of every nationality and kindly 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, ordinance it on our website: OrderCustomPaper.com

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