what is the differential expression of a gene what is a differential expression test? what is the test used for differential expression genes what test for gene expression is the t test which gene expression test can find the difference between s1 and s2 what t-test shows differentially expressed genes when does differential expression start at gene s1 which t test can figure the differential expression of two genes? what test determines differential expression which gene expression test is used to check for differential expression? how can a t test tell what the differential between two genes is what test is needed to test for differential expression what is the difference between s1 and s2 in genes what is the p value for each gene expressed at the dxe what is the p value for differential expression a test for how to identify differential expression gene expression difference between two sets of samples what is dx gene which test is used to find a differentially expressed gene which test shows differential genes?