Figure 1From: DNA Microarrays: a Powerful Genomic Tool for Biomedical and Clinical ResearchSchematic Representation of a Gene Expression Microarray Assay. Arrows represent process (left column) and pictures or text represent the product. Differences in the protocol in one- and two-dye technologies are specific to the technology rather than to the samples or question. For CGH, the process is similar, replacing mRNA by DNA.Back to article page