
Crick and Watson's DNA Molecular Model
1953
1953
1953
1955
1960
1955
1951
circa 1956-1959
1958
1951-1953
1959
1839 (original); circa 1988 (replica)
1961
1960
1955
1955
1957
1962
circa 1960
1957
1953-1958
1961
1955
1961
circa 1955
1962
1957
1957
1960
1960
1960
1953
1960
1951
1957
1957
1955
1951
1955; 1830
1951
1955
1954-1955
1959
1960
1956
1955
1960
1954
1951
1953
1956