Posted by Brittany Alexander and Alisha Hart on October 01, 19103 at 10:49:41:
The number of inherited and congnital disorders that can now be diagnosed before irth is increased. Thae original method used in prenatal diagnosed is to punch a needle in the mothers abdomen and extracting a sample of the fluid surrounding the unborn child. The other advance that has brought to this field is the development of DNA testing by which single gene defects can be identified in fetal cells.