
Crick and Watson's DNA Molecular Model
1953
1953
1953
1949
1948-1953
1942
1950-1952
1945-1955
1952-3
1945
1951
1830 (original); 1967 (model)
1955
1946-1950
1948-1950
1955
1954
1953
1946
1951-1953
1955
1950-1953
1945
1953
1949
1950
1948
1947
1947
1951
1946; 1946
1943
1944
1948-1953
1945
1947
1947
1955
circa 1955
1950
1953
1951
1945-1955
1955
circa 1950
1950
1951
1955
1950
1948
1946