
Crick and Watson's DNA Molecular Model
1953
1953
1953
1955
1956
1948-1953
1839 (original); circa 1988 (replica)
1951
1947
1948
circa 1955
1950
1955; 1830
1950
1955
1954-1955
1945
1948
1946
1949
1955
1950-1953
1955
1951
1943
circa 1953
1948
1950-1952
1938 and 1951
2000-100 BCE
1942
1948-1953
1942
1954
1949
1951
1953
1946
1942
1954
1951
circa 1955
1944
1950-1953
1955
circa 1942
1956
1952
1955
1954
1952