“…In [1,9,11], cyclic DNA codes over finite fields with four and sixteen elements were considered, respectively. Further, in [12], Siap I et al considered cyclic DNA codes over the ring F 2 [u]/ u 2 − 1 based on the deletion distance and there were also a lot of progress about cyclic DNA codes over the ring, the more information can be seen in [3,4,6,7,13]. Motivated by the work listed above, we are interested in cyclic DNA codes over the ring R. In this work, we construct the cyclic DNA codes over the ring…”