Figure 1From: Assessment of data processing to improve reliability of microarray experiments using genomic DNA referenceScatter plot represents the correlation of the results from type 1 and 2 experiments. Genes with expression changes in opposite categories (induction vs. repression) in both approaches are visualized as dots located in the 2nd and 4th quadrants and away from the origin. Pearson's correlation coefficients (r) are indicated in each panel.Back to article page