
Crick and Watson's DNA Molecular Model
1953
1953
1953
1969-1970
1969
1942
1955
1960
1948-1953
1955
1946-1950
1940
1951
1949
1945-1955
circa 1956-1959
1969
1958
1946
circa 1964
1951-1953
1959
1945
1967
1950-1952
1938
1937-1960
1966
1948-1950
1943
1839 (original); circa 1988 (replica)
1949
1961
1960
1948-1953
1954-1968
1945
1968
1948
1946
1950-1959
1955
1950-1959
1955
1943
circa 1960-1970
circa 1960-1970
1948
1957
1962
circa 1960