Figure 2.

Expression of sense-antisense probe pairs. Each point represents a pair of probes, A and B, which target different strands of the same genomic loci. Shown in the left (a) are the expression levels of probe A and B in the same (sense) array. The right figure (b) gives the expression level of probe A in sense array (x-axis) versus that of probe B in the antisense array (y-axis). Signals are in log scale with a base of 2.