The probe is optimized to detect copy numbers at the CTNND2 gene region in the critical region at 5p15.2. The 5q31 specific DNA probe at 5q31 is included as control probe. Know more at: http://www.creative-bioarray.com/Cri-Du-Chat-CTNND-5q31-Probe-FMDC-06-item-4593.htm