Figure 2.

Examples of Cy5 signals on a microarray slide scanned at day 0, 10, 20, and 30, respectively. At day 0, the spot intensities on this slide range from 592 to 58229, with an average background intensity of 2504 versus an average intensity of 2512 for the 4 negative control spots. The scale bar on the right indicates color-coded signal intensities.