
Crick and Watson's DNA Molecular Model
1953
1953
1969-1970
1969
1953
1920-1950
1920-1960
1934
1976-1979
1935
1926-1932
1963
1920-1925
1960
1948-1953
(1962); 1982
1959
1919
1969
1976
1925-1958
1935-1965
1923
1984-1986
1949
1949
1988
1925-1935
1920-1950
1920-1950
1930-1960
1920-1950
1830 (original); 1967 (model)
1948-1950
circa 1956-1959
1980
1948-1970
1970
1971
1968
1926
1948
1946
1950-1959
1955
1950-1959
1955
1943
circa 1960-1970
circa 1960-1970
1948