Bernard Dixon | Apr 2, 1989 | 2 min read
LIFE SCIENCES >BY BERNARD DIXON European Editorial Office The Scientist Uxbridge, U.K> " By depositing calf thymus DNA onto graphite, to serve as the conductive surface for electron tunneling, a Lawrence Livermore/Lawrence Berkeley Laboratory team has produced some astonishing pictures of the topography of this key macromolecule. Major and minor grooves can be distinguished, and some of the double-stranded DNA molecules appear as twisted ladders T.P. Beebe, T.E. Wilson, D.F. Ogletree, et al