
Crick and Watson's DNA Molecular Model
1953
1953
1953
1949
1934
1918-1920
1903
1901-1920
1903
1948-1953
1918
1920-1950
1935
1942
1950-1952
1920-1925
1900-1910
1945-1955
1901-1930
1952-3
1920-1950
1945
1951
1905
circa 1956
1940
1830 (original); 1967 (model)
1925-1935
circa 1919
1915-1925
1925-1935
circa 1900
1955
1919
1928
1923
1946-1950
1940
1801-1840 (original); 1901 (model)
1923
1901-1930
1920-1950
1920-1950
1900-1920
1909-1932
1940-1950
1948-1950
1910-1923
1935
1911
1927