Figure 1.

Probe design of Exon arrays. (a) Exon-intron structureof a gene. Black boxes represent exons. Gray boxes represent introns. Introns are not drawn to scale. (b) Probe design of Exon arrays. Four probes target each putative exon. (c) Probe design of 3' expression arrays. Probes target the 3' end of the mRNA sequence.