  The question of whether DNA is intrinsically conducting or not is still a
challenge. The ongoing debate on DNA molecules as an electronic material has so
far underestimated a key distinction of the system: the role of base pairing
(inter chain correlation) in opposition to correlations along each chain. In
the present work we show that a disordered double-chain presents truly
delocalized states. This effect is irrespective to the sequencing along each
chain: DNA-like base pairing reveals to be an efficient delocalization
mechanism.
