Fig. 2From: Accurate diagnosis of spinal muscular atrophy and 22q11.2 deletion syndrome using limited deoxynucleotide triphosphates and high-resolution meltingDuplex PCR and HRM result for SMN1 exon7 copy number assessment. Using the restricted dNTPs and duplex PCR, samples with 3 copies (green), 2 copies (blue), 1 copy (black) and 0 copy (red) of SMN1 exon7 were well distinguished after normalization against CFTR gene. −dF/dT, negative first derivative of fluorescence with respect to temperatureBack to article page