
Crick and Watson's DNA Molecular Model
1953
1953
1953
1969-1970
1969
1949
1976-1979
1976
1960
1955
1951
1960
1953
1948-1953
1955
1957
1942
circa 1956
1943
1937
1945-1955
circa 1956-1959
1975
1964
1940
1953
1959
1973
1970-1979
1960
1963
1969
1960
1951-1953
1945
1979
1940
1936
1940
1961
1974
1968
circa 1956
1978
1937-1960
1960
1978
1974
1948-1953
1948-1950
1962