Franklin W. Stahl, an American molecular biologist whose landmark 1957-58 experiment with colleague Matthew Meselson revealed ...

A model of a DNA molecule in 1962. The discovery of DNA’s “twisted ladder” structure 70 years ago opened up a world of new science — and also sparked disputes over who deserves credit.

He and a colleague proved a theory advanced by the Nobel Prize winners James Watson and Francis Crick, who discovered DNA’s ...

Rosalind Franklin, a scientist at the University of London, had already documented the helical nature of DNA when Watson and Crick accessed her unpublished data without permission and used it to ...

James Watson and Francis Crick revealed the structure of DNA — the genetic instructions in all living things — 70 years ago in the journal Nature. Watson and Crick could not have succeeded ...

FILE - A model of a DNA molecule is displayed in the New York office of the Sloan-Kettering Institute for Cancer Research on Oct. 18, 1962. The discovery of DNAs twisted ladder structure 70 years ...

A model of a DNA molecule is displayed in the New York office of the Sloan-Kettering Institute for Cancer Research on Oct. 18, 1962. The discovery of DNA’s “twisted ladder” structure 70 ...

FILE - A model of a DNA molecule is displayed in the New York office of the Sloan-Kettering Institute for Cancer Research on Oct. 18, 1962. The discovery of DNAs twisted ladder structure 70 years ...

FILE - A model of a DNA molecule is displayed in the New York office of the Sloan-Kettering Institute for Cancer Research on Oct. 18, 1962. The discovery of DNAs twisted ladder structure 70 years ...

The story of how scientists discovered DNA's shape may be getting another twist. Skip to main content. Open Main Menu Navigation. Open Search Snow icon. 32 ...

NEW YORK -- The discovery of DNA's double helix structure 70 years ago opened up a world of new science -- and also sparked disputes over who contributed what and who deserves credit.

The discovery of DNA's double helix structure 70 years ago opened up a world of new science -- and also sparked disputes over who contributed what and who deserves credit.