2.  Rosalind Franklin was asked to set up a DNA laboratory using X-ray technology.  Rosalind Franklin was best well known for her X-ray diffraction images of DNA.  Her images led into the discovery of the double helix of DNA.

3. Steps She UsedSteps She Used  She first purified large amounts of DNA  Then she stretched DNA fibers in a thin glass so that all the strands were parallel  Then she aimed a high power x-ray beam at the concentrated DNA  Finally she recorded the pattern on film.

4.  She used X-Ray crystallography to study the DNA structure.  X-ray crystallography is when atoms are mapped by looking at the image of the crystal under an X-ray beam.

5.  She had the responsibility of finding the structure of DNA.  She found A and B forms of DNA  She focused more an A because it showed more X-ray spots.

6.  Her findings were confirmed by James Watson and Francis Crick.  James Watson was showed an image of Franklins work.  This allowed Watson and Francis Crick to build a molecule the explained the specific properties and structure of DNA.

7.  After their discovery, James Watson, Francis Crick, and Maurice Wilkins were awarded a Nobel Prize in physiology.  Franklin could not be honored because of her death in 1958 caused by ovarian cancer.

8. Crystallography PhotosCrystallography Photos

9. Websites UsedWebsites Used  http://www.chemheritage.org/discover/online-resources/chemistry-in- history/themes/biomolecules/dna/watson-crick-wilkins-franklin.aspx http://www.chemheritage.org/discover/online-resources/chemistry-in- history/themes/biomolecules/dna/watson-crick-wilkins-franklin.aspx  http://scienceblogs.com/primatediaries/2009/07/25/today-in-history- rosalind-fran/ http://scienceblogs.com/primatediaries/2009/07/25/today-in-history- rosalind-fran/  http://www.sdsc.edu/ScienceWomen/franklin.html http://www.sdsc.edu/ScienceWomen/franklin.html  http://en.wikipedia.org/wiki/Rosalind_Franklin http://en.wikipedia.org/wiki/Rosalind_Franklin