
Crick and Watson's DNA Molecular Model
1953
1953
1953
1969-1970
1969
1992-1994
1988
1964-1970
1976-1979
1955
1957
1960
circa 1956-1959
1984-1986
1960-1969
1974
1994
1964
1955
1955
1982
1976
1970-1981
1960
1967
1951
1995
1978
1964-1988
1963
1960
1970-1971
1976
1968-1985
1995
1961
1980
1975
circa 1955
circa 1972
1985
1984
1958
1962
1982
1956
1975
1990s
1981-1982
1985
1955-1975