
Crick and Watson's DNA Molecular Model
1953
1953
1953
1955
1948-1953
1951
1949
1951
1956
1946
1948-1953
1955
1948-1950
1839 (original); circa 1988 (replica)
1949
1830 (original); 1967 (model)
1903 (original); 1982 (model)
1990-96
circa 1956
1950
1947
1948
circa 1955
1950
1955; 1830
1950
1955
1950
1956
1954
1949
1953
1946
1954
1951
circa 1955
1950-1953
1955
1956
1952
1955
1954
1952
1955
1954
1952
1954
1956
1956
1952
1954