On 3D graphical representation of DNA sequences
DNA序列的3D图形表示（英文）

We outline a novel 3D graphical representation of DNA sequences,which can avoid crossing and overlapping of the corresponding spatial curve.And the advantage is that we can just consider two different conditions,in contrast with three conditions in other 3D representations.For the purpose of application,we construct a 2-component vector whose components are the normalized leading eigenvalues of the L/L matrices associated with DNA sequence based on the two conditions,to examine the similarities/dissimilarities among the coding sequences of different species.