
Crick and Watson's DNA Molecular Model
1953
1953
1963
1953
1949
1948-1953
1963
1950-1952
1952-3
1960
1951
1960
circa 1956
1830 (original); 1967 (model)
1955
1957
circa 1956-1959
1968
1950-1960
1948-1950
1955
1954
1964
1953
1956
1964
1955-1964
1956
1959
1951-1953
1967
1955
1961-1962
(1962); 1982
1950-1953
1953
1958
1960
1965
1949
1961
1950
1948
1963
circa 1956
1947
1966
1947
1965
1967
1951