It may sound little crazy. I got a plot that looks like one of the projections of the DNA helix. I did not give much though about it. I superimposed sin(x) and its first order difference, diff(sin(x)) and I have a shape that looks pretty close to the projection of the DNA helical model (or just an overkill!). I am not sure though, there could be some connection. I call upon the mathematicians out there to take this up. The Empire is calling you for its service :) Do somethin :)). Common its not really that! But there is something in there...
You will now this is far from being anywhere near a helix! Still It looks interesting :)