has part realizes is about has specified input has specified output characteristic of has characteristic role of has role material entity fluorescence microscopy assay cell DNA damage response information content entity evaluant role reagent role dye role agarose gel fluorescence detection assay cytometry assay detection technique comet assay comet assay SCGE assay single cell gel electrophoresis assay Philippe Rocca-Serra PMID:7686265 PMID: 18326531.Mutagenesis. 2008 Mar 6.Recommendations for design of the rat comet assay. An assay that measures DNA damage (DNA breakage) in eucaryotic cells exposed to a challenge by determining the size and shape of DNA migration by detecting fluorescently labeled DNA from a cell placed in an electric field using gel electrophoresis fluorescence ready for release