
Crick and Watson's DNA Molecular Model
1953
1953
1953
1952-3
1830 (original); 1967 (model)
1955
1955
1954
1953
1955
1953
1955
circa 1955
1953
1955
1955
1955
1955
1954
1955
circa 1953
circa 1955
1952
1954
1952
1954
1952
1954
1952
1953
1955
1955; 1830
1954-1955
1955
1955
1954
May 1953
2000-100 BCE
1955
1903 (original); 1982 (model)
circa 1953
1953
1954
1952
1954
1955
1839 (original); circa 1988 (replica)
1955
1953
1955
1954