But James Watson and Francis Crick's claim was a valid one, for they had in fact discovered the structure of DNA, the chemical that encodes instructions for building and replicating almost all ...

Beyond the ladder-like structure described above, another key characteristic of double-stranded DNA is its unique three ... scientists must first use a chemical process that attaches the ...

Levene Investigates the Structure of DNA Meanwhile, even as Miescher's name fell into obscurity by the twentieth century, other scientists continued to investigate the chemical nature of the ...