FIG. 3.

Technical variation between samples. Scatter plot of microarray data. (A) Two RNA samples of sample 86 (86-1 and 86-2) were processed independently and hybridized to two Affymetrix arrays. The RMA-normalized data of all 14,554 probe sets are plotted in a scatter plot. (B) Total RNA from two independent noninduced control fermentations (sorbitol), 96 and 52, are hybridized, and RMA normalized-data are plotted. The lines above and below the diagonal line indicate twofold difference relative to the diagonal line.