Figure 4: Inferred copy number profiles for mixture components in the vicinity of three markers from the data of Navin et al. . The -axis of each figure corresponds to probes within a specific marker region and the -axis to copy number relative to the diploid control in that region for each component. The thin solid line in each plot at value 1 shows the diploid threshold. Amplified components appear in black and nonamplified in grey. (a) Marker 1, corresponding to the amplicon at 1q32.1-1q32.2. (b) Marker 20, corresponding to the amplicon at 17q12-17q21.2.