
Crick and Watson's DNA Molecular Model
1953
1953
1955
1953
1955
1953
1830 (original); 1967 (model)
1955
1956
1955
1954
1839 (original); circa 1988 (replica)
1955
1955
1956
circa 1956
1953
1955
1990-96
circa 1956
1953
1956
2000-100 BCE
circa 1953
1955
1990-95
1955
1956
circa 1955
1953
circa 1955
1956
1950
1955
1955
1954
1954
1956
1903 (original); 1982 (model)
1955
circa 1955
4000-2001 BCE
1960-1979
2050-1750 BCE
1953
1954
1955
1955; 1830
1955
circa 1956
1953