3dscience.blogspot.com
3D ScienceThursday, February 10, 2005. Biology: The DNA Spiral. At the opposite end of the size scale from planetary bodies is the Microscopic world. Of particular interest is the DNA Spiral, a concept that leads itself admirably to 3D modelling. The internet has heaps of resources on DNA and genetics, from basic information aimed at Primary School kids through High School and College texts to the professional level. Use these to understand the concepts behind what you are making. Which is simple and colourful.
http://3dscience.blogspot.com/