Column A: Gene positions on human chromosome 21 (in base pair). Column B: Gene name/clone number. Column C: Genes ubiquitously or not expressed in control mice, according to the array hybridizations results. in green: genes expressed in all nine tissues. in purple: genes not expressed in any tissues. Columns D, E: triplicated genes escaping the 1.5 fold expression rule in Ts65Dn mice (confirmed by qPCR). Each colored cell displays the tissue where the dysregulation occurs. D: Compensated or down-regulated genes are shown in blue. E: Over-expressed genes are shown in red. Column F: Gene ontology (Biological process).