
Crick and Watson's DNA Molecular Model
1953
1953
1953
1949
1955
1953
1942
1948-1953
1945
1951
1943
1955
1951-1953
1953
1945
1936
1946-1950
circa 1956
1839 (original); circa 1988 (replica)
1949
1940
1945-1955
1956
1830 (original); 1967 (model)
1948-1950
1948-1953
1952-3
1938
1947
1938
1948
1938
1938
1940
circa 1955
1940
1936
1950
1938
1938
1950
1955
1955; 1830
1950
1951
1939-1955
1949
1954-1955
1940-1945
1945
1948