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The Scientist has asked a group of experts to periodically comment upon recent articles that they have found noteworthy. Their selections, presented here in every issue, are neither endorsements of content nor the result of systematic searching. Rather, they are personal choices of articles they believe the scientific community as a whole may also find interesting. Reprint. of any artieles cited here may be ordered through The Genuine Article, 5501 Market St., Philadelphia, Pa. 19104, or by tel

The Scientist Staff
Sep 4, 1988
The Scientist has asked a group of experts to periodically comment upon recent articles that they have found noteworthy. Their selections, presented here in every issue, are neither endorsements of content nor the result of systematic searching. Rather, they are personal choices of articles they believe the scientific community as a whole may also find interesting. Reprint. of any artieles cited here may be ordered through The Genuine Article, 5501 Market St., Philadelphia, Pa. 19104, or by telephoning (215)886-4899.

BY RON MAGOLDA
Medical Products Department
E.I. du Pont de Nemours & Co.
Wilmington, Del.
" Two recent papers deal with the structure of DNA, which continues to be of vital importance in molecular biology. Studies on the biophysical properties of paralled stranded DNA and the X-ray determination of a synthetic DNA hairpin in the Z helix form have revealed basic principles of helix formation.

R. Chattopadhyaya, S. Ikuta, K Grzeskowiak,...

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