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In addition to expanding the possibilities for synthetic biology, the findings also support a hypothesis that dates back to Watson and Crick's original discovery.

These Watson and Crick pairs always form in the same configurations: A-T and C-G.

The double-helix structure of DNA is formed when many Watson and Crick base pairs come together.

In a molecule of DNA, nucleotides form base pairs with a unique molecular geometry called Watson and Crick geometry, named for the scientists who discovered the double-helix structure of DNA in 1953.

Franklin provided essential quantitative data on the structure in a report she shared with a colleague, who shared it with Watson and Crick.