
Crick and Watson's DNA Molecular Model
1953
1953
1953
1969-1970
1973
1969
1960
1955
1955
1951
circa 1956-1959
1958
circa 1964
circa 1972
1959
1969
1967
1951-1953
1966
1839 (original); circa 1988 (replica)
1961
1960
1978
1974
1974
1970-1971
1954-1968
1971
1968
1955
1955
circa 1960-1970
circa 1960-1970
1957
1962
circa 1960
1957
1971
1955
1975
1969
1961
circa 1955
1962
1968-1971
1960
1953
1960
1968
1951
1964