
Crick and Watson's DNA Molecular Model
1953
1953
1953
1969-1970
1969
1976-1979
1976
1960
1955
1960
1957
1953
1955
circa 1956
circa 1956-1959
circa 1980
1975
1964
1976-1982
1979
1953
1959
1973
1960
1970-1979
1969
1960
1963
1961
1978
1974
1970-1981
1968
circa 1956
1978
1960
1974
1954-1968
1962
1952-3
1960
1970-1971
1955-1965
1979
1963
1965
circa 1955
circa 1972
1962
1958
1982