
Crick and Watson's DNA Molecular Model
1953
1953
1953
1969-1970
1948-1953
1969
1920-1950
1992-1994
1940
1907
1988
1935-1965
1920-1960
1964-1970
1903
1930-1960
1934
1915-1918
1976-1979
1955
circa 1897
1920-1925
1917
1918-1920
1919
1957
1942
1960
1901-1930
1936
circa 1956-1959
1920-1950
1895-1904
1984-1986
1920-1950
1935
1989
1945-1955
1960-1969
1974
1994
1964
1947-1958
1976
1973-1983
1955
1979
1955
1898
1918
1903