
Crick and Watson's DNA Molecular Model
1953
1953
1953
1948-1953
1959
1949
1949
1830 (original); 1967 (model)
1948-1950
circa 1956-1959
1948
1946
1950-1959
1955
1950-1959
1955
1948
1957
1957
1947
circa 1955
1950
1950
1951
1957
1957
1955
1957
1957
1954
1949
1958
1951
1953
1956
circa 1953
1951
1944
1950-1953
1955
1951
1956
1959
1959
1951-1953
1946-1948
1953
1946
1956
May 1953
1951-1953