A system for producing a display of the DNA identity of an individual comprises means for inputting a plurality of numbers and/or letters obtained through an individual's DNA analysis which are representative of a plurality of DNA loci; means for correlating inputted numbers and/or letters with predetermined colours; and means for producing a display with an array of coloured regions representative of each DNA locus and positioning said coloured regions in the same location of the display for each individual for which a display is produced.
