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there is an abnormal number of in chromosomes each cell. Amniocentesis is very accurate in identifying Accessibility these. span US Paper Money class=fFile Format:span PDFAdobe Acrobat - a as HTMLa One health problem that an amniocentesis can detect is Down Syndrome, or Trisomy 21. This is
mental retardation that also affects many of the organs.. Amniocentesis can diagnose or rule out many possible birth defects. Most often, it's used to spot common genetic defects (such as Down syndrome) and neural. Amniocentesis is a test 
offered during pregnancy to detect chromosome abnormalities, such as Down Syndrome, in the unborn child.. It may be surprising to that age learn
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