MTC multiple tissue cDNA panels are sets of first-strand cDNAs from 5 to 12 different tissues or cell lines. They offer fast and accurate PCR analysis of gene expression across multiple tissues in a fraction of the time required for Northern or dot blot analysis. Each MTC panel has been normalized to several different housekeeping genes to ensure accurate assessment of target mRNA abundance. In addition, human panels are normalized against one another, allowing comparison of results obtained using different panels. MTC panels are virtually free of genomic DNA, ensuring all signals generated are from actual mRNA transcripts.