
Crick and Watson's DNA Molecular Model
1953
1953
1953
1955
1957
circa 1956-1959
1955
1955
1951
1950
1830 (original); 1967 (model)
1950
circa 1955
1958
1956
1955
1955
2000-100 BCE
1956
1955
1950-1953
1959
circa 1953
1957
1953-1958
1951
1950-1952
1950-1959
1957
1950-1959
1950
1950
1955; 1830
1950
1957
1952
1955
1959
1959
1954
1952
1955
1957
1954
1952
1954
1957
1959
1956
1957
1959