Discovering the role of DNA By max daPaquier

1865 Gregor Mendel shows that the characteristics of plants are passed down ina predicable way

1903 walter Sutton shows that chromosomes carry the cells units of inheritance

1911 Thomas hunt Morgan demonstrates that genes are arranged in linear fashion on the chromosomes of the fruit fly

1928 Frederick Griffith discovers that bacteria contain a molecule that can transfer genetic information from cell to cell

1944 Oswald Avery Calvin Macleod and maclyn McCarty show the substance that Griffith discovered is dna

1950 Erwin chargoff analyzes the bad composition of DNA in cells he discovers that the amounts of adenine and thymine are almost always equal as the amounts of guanine and cytosine

1952 Alfred Hershey and Martha chase confirm that the genetic material of viruses is DNA not protein Rosalind franklin records a critical x ray diffraction pattern demonstrating pattern demonstrating that DNA is in the form of a helix

1953 James Watson and Francis crick publish their model of the DNA double helix the model was made possible by franklins work

2000 craig venter and Francis Collins announce the draft DNA sequence of the human genome at a White House ceremony in Washington D.C. The final version is published in 2003

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Created with images by Nesster - "DNA"

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