
Crick and Watson's DNA Molecular Model
1953
1953
1948-1953
circa 1956-1959
1949
1960
1935
1934
1935-1965
1955
1945
1945-1955
1942
1957
1959
1950-1960
1952-3
1951
1953
1955
1953
1949
1963
1830 (original); 1967 (model)
1948-1950
1935
1964
1948-1953
1940
1933-1959
1950-1952
1937-1960
1935
1955
1936
1960
1930-1960
1956
1946
1930-1940
1960
1934
1964
1963
1937-1960
1964
1935-1945
1946-1950
1961
1940-1945
1955