
Replica of Crick and Watson's 1953 DNA Double Helix Model
1993
1993
1925; 1862
1928
1977
1925
1925
1911
1925
1925
1925
1949-05-05
1948-03-21
1948-03-21
1948-03-21
1917
2016
1917
1970-1975
1970-1975
1972
1972
1895
1957
1965
1991
1991
1991
1991
1996
1862-1877; 1965; 1965
1897-1898
1884-1885; 1919
1903
1200-1500 (original)
1965
1932
1932
1964
1964
1850-1900
1959
1959
1959
1959
1970-1975
1970-1975
1974
1937
1931; 750-850 CE
1960-1979