double helix structure Archives

Stretching the truth: JILA biophysicists help unravel DNA stretching mystery

Using a new experimental test structure, biophysicists at JILA have unraveled part of a 15-year mystery in the mechanics of DNA — just how the molecule manages to suddenly extend to almost twice its normal length. The new test structure should supp…

Mathematical models reveal 'molten' and 'glassy' states of RNA

Mathematical models have given physicists a new look at DNA’s chemical counterpart, RNA. The models — showing that RNA behaves differently depending on the temperature of its environment — may help biologists better understand how life evolved on Earth.