Certain DNA sequences can form structures other than the canonical double helix. These alternative DNA conformations—referred ...

Rosalind Franklin made a crucial contribution to the discovery of the double ... a helix). Using Franklin's photograph and their own data, Watson and Crick created their famous DNA model.

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 ...