
Crick and Watson's DNA Molecular Model
1953
1953
1948-1953
1949
1952-3
1951
1953
1953
1949
1830 (original); 1967 (model)
1948-1950
1948-1953
1950-1952
1951-1953
1948
1839 (original); circa 1988 (replica)
1951
1948
1953
1951
1950
1990-96
1950
1953
1950
1948
2000-100 BCE
1950
1951
1947
1949
circa 1953
1950-1953
1990-95
1953
circa 1950
1949
1951-1953
1938 and 1951
1947
1950
1950
1949
1951
1951
circa 1950s
1947
1951
1950
1948
1950-1953