
Crick and Watson's DNA Molecular Model
1953
1953
1953
1955
1957
1960
circa 1956-1959
1964
1955
1955
1965
1960
1967
1951
1830 (original); 1967 (model)
1963
1960
1961
circa 1955
1958
1962
1956
1955
1955
1965
1955-1965
2000-100 BCE
1961
1956
1955
1955-1965
1959
circa 1953
1957
1953-1958
1951
1957
circa 1960
1960
1962
1962
1963
1960
1955-1965
1960
1960
1964
1955; 1830
1965
1955-1965
1963