Detecting Differentially Expressed Genes by Differential Display

Of the estimated 30,000-50,000 genes encoded by the human genome, only 10-15% are expressed as proteins by the average cell in bodies. The choice of which subset of genes to be activated is a major determinant of a cell’s properties. In addition to the abnormal expression of genes in pathological processes, the differentially expressed gene (either by induction or repression) controls the normal developmental process of organisms, such as lung development.