Question

American scientist, Linus Pauling, was one of many scientists racing to discover the molecular structure of DNA. Pauling initially thought that the molecule was a triple helix. Later, James Watson and Francis Crick unveiled their double helix model, which turned out to be an accurate description of the molecule's shape.
Why did Watson and Crick succeed when Pauling failed?​

Answer 1

Answer:

Watson and Crick were able to develop a more accurate molecular structure because they had access to x-ray crystallography! Pauling didn't actually failed, he just did't have the same means!  

Explanation:

By the way, is now known that the real discovery of DNA molecule was made by Rosalind Franklin. Any doubts you can send me a message!