...In fag heads, cholesteric liquid crystal type ordering of DNA reveals strong bi-axial correlations, a consequence of the chiral structure of ds-DNA.
Physics of DNA: unravelling hidden abilities encoded in the structure of ‘the most important molecule’. AA Kornyshev, Phys. Chem. Chem. Phys., 2010, 12, 12352-12378
http://pubs.rsc.org/en/Content/ArticlePDF/2010/CP/C004107F/2010-08-10 That's what living in London is doing to people...