This is a non-invasive assay used for the detection of Fetal trisomies like Down syndrome (Trisomy 21), Edwards syndrome (Trisomy 18) and Patau’s syndrome (Trisomy 13) using Maternal peripheral blood. In addition the assay detects 20 different types of Microdeletion syndromes like DiGeorge, William, Prader Willi, Angelman etc. The specificity of the test is >99% with a false positive rate of <0.05%.