The double helix is a description of the molecular shape of a double-stranded DNA molecule. In 1953, Francis Crick and James Watson first described the molecular structure of DNA, which they ...

to argue that DNA actually takes the form of a double helix, a ladder-like structure that is twisted along its entire length (Figure 6). Franklin, Watson, and Crick all published articles ...

But James Watson and Francis Crick's claim was a valid one, for they had in fact discovered the structure of DNA, the chemical ... in such a way to form a double helix, like a spiral staircase.

Scientists still needed to figure out this molecule's structure ... the double helix to keep the distance between the chains constant. Watson and Crick showed that each strand of the DNA molecule ...

1 In their 1953 publication on the DNA double helix, Watson and Crick stated: "It is probably impossible to form this structure with ribose, instead of deoxyribose." The reason: The 2' hydroxyl on ...

Thirteen Nobel Prize winners gathered at UNESCO headquarters in Paris for a symposium to mark the fortieth anniversary of the discovery of the structure of DNA. Francis Crick and James Watson, who in ...