
Crick and Watson's DNA Molecular Model
1953
1953
1945
1967
1999
1989
1987
1967
1993
1988-1998
1993-1996
1948
circa 2014
1994
1988
1988
1993
1960
1940-1950
1995-2000
circa 1920
circa 1920
1960-1990
circa 1920
circa 1920
circa 1920
1920-1970
1979
2009-2010
1940-1950
1940-1950
1984
1940-1950
1940-1950
1940-1950
1940-1950
1940-1950