
Crick and Watson's DNA Molecular Model
1953
1953
1953
1948-1953
1969
1940
1955
1957
1960
circa 1956-1959
1945-1955
1960-1969
1964
1947-1958
1955
1955
1945
1949
1965
1945-1948
1960
1967
1949
1951
1950
1830 (original); 1967 (model)
1948-1953
1963
1950
1960
1976
1947
1950-1969
1961
circa 1955
1950-1960
1950-1960
circa 1942
1958
1962
1956
1945
1950-1960
1950-1960
1950-1960
1955
1947
1955
1940
1954-1968
1965