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jan 1, 1943 - 1943: William Astbury, a British scientist, obtains the first X-ray diffraction pattern of DNA, which reveals that DNA must have a regular periodic structure. He suggests that nucleotide bases are stacked on top of each other.
Added to timeline:
4 Feb 2020
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DNA Timeline
Date:
jan 1, 1943
Now
~ 81 years ago