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Exchange Exemplar: DNA Discoveries

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You see two vertical spirals side-by-side, and you think "oh, DNA."  That double helix shape is THAT recognizable in our society.  Today. 

But it took a lot of hard work from quite a few scientists to reach the discoveries that led to that knowledge. 

Matthew Cobb lays out the story in his book Life's Greatest Secret: The Race to Crack the Genetic Code.  His work on the history of science led him to the Exchange for this interview from 2015.

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Geoffrey Riley is a graduate of the University of Missouri School of Journalism and has hosted the Jefferson Exchange on JPR since 2009. He's been a broadcaster in the Rogue Valley for more than 35 years, working in both television and radio.