
Crick and Watson's DNA Molecular Model
1953
1953
1969
1934
1949
1950-1952
1890-1900
1936
1951
1970
1995-2000
2021
1998
1940-1945
1920-1930
circa 1980
1957-1988
1993
1946
1920-1930
1930s
1995-1996
1960
1909-1919
1945
1942-1945
1921
1993-1995
1971
1910-1920
circa 1956
1925
1900-1920
1930
1961
1937
1911
1919
1960
1937
1937
1919
1945
1954
1953
1952
1957
1922
1937
1951
1929