Hello again, girls and boys and whatever else may be out there reading. It’s time once again for this blog’s contribution to The Giant’s Shoulders (hosted this time over at “Second Order Approximation“). This month I’m looking at something even smaller than usual. Inspired by my new job in the biochemistry department where they seem to do a substantial amount of X-ray crystallography (which I do not – yet – understand as well as I’d like), I thought I’d drop all the way down to the molecular level and talk about a fundamental discovery that helped make modern molecular microbiology possible: the structure of DNA.
Yes, it was over a half-century ago that an accomplished scientist, working with X-ray images produced from crystallized nucleic acids, published the first proposed structure for for them – the famous Triple Helix.