Fig. 3. The expression profiles of several developmentally regulated genes were confirmed using RT-PCR. (A) The profile of gene expression of the selected genes from the Atlas 1.2 arrays is shown with relative pixel density on the y-axis. The profiles of gene expression were obtained using Atlas Navigator 1.0 software as described for Fig. 2. (B) The RT-PCR results confirm the profile of gene expression. The cDNAs were normalized to expression levels of Gapd and Actb (ß-actin) for the PCR.