Why a Particle Physicist is Interested in DNA Branch Migration
  We describe an explicitly discrete model of the process of DNA branch migration. The model matches the existing data well, but we find that branch migration along long strands of DNA ($N \simge 40$~bp) is also well modeled by continuum diffusion. The discrete model is still useful for guiding future experiments. 
Eric Myers (Univ. of Michigan) and Michael F. Bruist (Vassar College)