Costa, António CardosoMachado, J. A. TenreiroQuelhas, Dulce2013-04-192013-04-1920120378-1119http://hdl.handle.net/10400.22/1438This paper analyzes the DNA code of several species in the perspective of information content. For that purpose several concepts and mathematical tools are selected towards establishing a quantitative method without a priori distorting the alphabet represented by the sequence of DNA bases. The synergies of associating Gray code, histogram characterization and multidimensional scaling visualization lead to a collection of plots with a categorical representation of species and chromosomes.engDNAChromosomePhylogeneticsMDSCorrelationVisualizationjournal article10.1016/j.gene.2011.09.015