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Click the links below to find out the major developments in DNA
1859 1869 1903 1928 1944 1950 1952
1865 1879 1911 1929 1948 1951 1953
Edwin Chargaff shows that the amount of one nucleic acid base, cytosine, in any given cell is approximately the same as the amount of another, guanine. Similarly he shows that the amount of thymine approximately equals that of adenine.

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