has part has part realizes is about is_specified_output_of concretizes transcript expression evidence differential hybridization evidence differential hybridization Differential hybridization identifies differentially expressed cloned genes. Two different mRNA-derived probes are used to demonstrate RNA expression under a specific condition. eco A type of nucleic acid hybridization evidence in which preferential or exclusive expression of genes in one cell type or tissue is compared to another cell type or tissue when mRNA from each sample is reverse transcribed, labeled, and hybridized to a cDNA library to compare hybridization patterns. ECO:0000116 gene expression information content entity assay transcription profiling assay transcription profiling design differential screening hybridization differential expression analysis objective