Tenreiro Machado, J. A.Costa, António C.Quelhas, Maria Dulce2019-04-162019-04-162011-07http://hdl.handle.net/10400.22/13593This paper addresses the DNA code analysis in the perspective of dynamics and fractional calculus. Several mathematical tools are selected to establish a quantitative method without distorting the alphabet represented by the sequence of DNA bases. The association of Gray code, Fourier transform and Fractional calculus leads to a categorical representation of species and chromosomes.engconference object