Crick and Watson's DNA Molecular Model
1953
1953
1948-1953
1963
1985-1989
1964
1955
1976-1982
circa 1972
1979
1960
1956
1985
1963
1956
1973-1983
1955
1990-96
circa 1956
1957
1985
1964
1974
1986
1950
1968-1972
1980-1989
1963
1950
1957
1966
1956
1982
1973-1983
1992
1981-1990
1980-1981
1955
1956
circa 1964
1948
circa 1955
1959
1985-1989
1951
1955-1965
1985-1989
circa 1960
1955-1975
1950-1959
1962