BIO 101 DNA The Nature of Biological Information.docx

BIO 101 DNA The Nature of Biological Information.docx - BIO...

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BIO 101 DNA: The Nature of Biological Information (NOT TESTED ON IN EXAM 5) Composition of DNA 1949 Chargaff showed: 1. Amount of adenine relative to guanine differs among species. 2. Amount of adenine always equals amount of thymine and amount of guanine always equals amount of cytosine. A=T and G=C The Pieces come together 1. Experiments in the 1950s showed that DNA is the hereditary material. 2. Scientists raced to determine the structure of DNA. 3. 1951 Rosalind Franklin’s Work. 4. 1953 – Watson and Crick Proposed that DNA is a double helix. What’s the Shape of DNA 1. 1951 Rosalind Franklin’s Work.
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  • Summer '11
  • DNA, Amount of adenine relative

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