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 ...

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 ...

Chances are you've seen an illustration of DNA's double-helix structure and even pictures of the chromosomes that comprise the human genome. But where and how does the famous double helix fit into ...