
Crick and Watson's DNA Molecular Model
1953
1953
1953
1955
1957
1960
circa 1956-1959
1955
1955
1955
1951-1953
1960
1830 (original); 1967 (model)
1951
1960
1952-3
1961
circa 1955
1958
1956
1955
1955
2000-100 BCE
1951
1960
1953
1961
circa 1955
1960
1960
1952
1959
1959
1954
1952
1961
1960
1960
1957
1954
1952
1954
1957
1961
1960
1961
1959
1956
1957
1959
1956