Linus Pauling's lifelong fascination with chemistry ... In the early 1950s, many scientists were racing to discover the structure of DNA. Pauling proposed a triple helix structure with the bases ...

Rather, DNA was first ... by American biochemist Linus Pauling. In fact, Watson and Crick were worried that they would be "scooped" by Pauling, who proposed a different model for the three ...

Constructed the first satisfactory model of a protein molecule ... Proposed that deoxyribonucleic acid (DNA) was a triple helix.