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Discovery of DNA

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Emily Asman

on 30 December 2014

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Transcript of Discovery of DNA

Scientists credited with the discovery of DNA structure
Franklin produced an x-ray photograph that allowed two other researchers, James Watson and Francis Crick to work out the 3D structure of DNA.
How it all started
In the early 1950s two scientists, Rosalind Franklin and Maurice Wilkins, studied DNA using x-rays.
Franklin produced an x-ray photograph that allowed two other researchers, James Watson and Francis Crick to work out the 3D structure of DNA. The structure of DNA was found to be a double helix.

Discovery of DNA
DNA
Stands for
D
eoxyribo
N
ucleic
A
cid
Every human being shares 99% of their DNA with every other human.
Humans and cabbage share about 40-50% common DNA
Nobel Prize
In 1962 Crick and Watson, along with Wilkins, received the Nobel Prize in Physiology or Medicine for their discovery. Rosalind Franklin had died four years earlier and her pivotal contribution wasn't acknowledged until much later.
This is an x ray diffraction of DNA. This is photo 51 and was discovered by Raymond Gosling in May 1952, working as a PhD student under the supervision of Rosalind Franklin, using x-ray crystallography.
Rosalind Franklin
James Watson
Francis Crick
Full transcript