chromosomal disorders

(Newser) - Scientists have developed a prenatal test for genetic defects much safer than the ones currently in use, reports the San Jose Mercury News. Methods like amniocentesis can spot chromosomal disorders like Down Syndrome, but involve inserting a needle into the uterus, which carries close to a 1-in-200 risk of miscarriage....

(Newser) - New procedures that scan all 46 human chromosomes are helping doctors classify disorders once lumped together as "developmentally delayed" or "autistic"—and helping parents connect to families whose children also have uncommon conditions. The New York Times looks at the lives of parents isolated by their experience...