MLPA results of patient 3 using the dyslexia kit. On the x-axis are the names of the probes in the P150 Dyslexia MLPA kit (MRC-Holland, Amsterdam, the Netherlands), targeting the exons of genes; ROBO2, ROBO1, NRSN1, DCDC2, KAAG1 and KIAA0319 as well as a control probe. On the y-axis are the allelic ratio, 1 representing normal two copies, and 1.5 representing one additional copy. A one copy duplication is indicated in KIAA0319 and DCDC2.