has_specified_input is_specified_output_of expression microarray evidence DNA to cDNA expression microarray evidence A type of expression microarray evidence where expression levels are quantified by hybridization of fluorescently-labeled DNA to cDNA (reverse transcribed from an unknown RNA sample) immobilized on a solid surface. transcript levels (e.g. microarray data) REM evidence ECO:0000104 RNA expression microarray evidence eco microarray RNA expression level evidence REM is a 'reverse-format' microarray, where the unknown sample is immoblized to a surface and known DNA is hybridized to that. transcription profiling by array assay cDNA library