Figure 2 of Ahani, Mol Vis 2013; 19:454-462.

Figure 2. Chromatograms illustrating whole gene deletion in patient IRB12. A: Normal control. B: Multiplex ligation-dependent probe amplification (MLPA) results of a blood DNA sample shows heterozygous deletion of the RB1 gene. C: The later MLPA results for the tumor DNA sample of the same patient show homozygous deletion of RB1.