
Crick and Watson's DNA Molecular Model
1953
1953
1953
1960
circa 1956-1959
1955
1963
1956
1964
1959
1955
1957
1839 (original); circa 1988 (replica)
1960
1830 (original); 1967 (model)
1903 (original); 1982 (model)
1960
1990-96
circa 1956
1964
1961
circa 1955
1960
1960
1960
1964
1955; 1830
1955
1959
1956
1963
1960
1954
1958
1964
1953
1964
1954
circa 1955
circa 1964
1957
1955
1958
1962
1956
1960
1964
1952
1955
1963
1962