Up Next
Back to Show
American Masters
DNA Discoveries Before Watson and Crick
James Watson and Francis Crick discovered DNA’s structure in 1953, but other scientists paved the way for them. Swiss chemist Friedrich Miescher isolated DNA in 1869, testing cell nuclei in pus. In 1944, Oswald Avery, Colin MacLeod and Maclyn McCarty’s study of pneumonia bacteria provided definitive evidence that DNA was the molecule of heredity.
Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
Support Provided By
Unlock with PBS Passport
1:23:10
Ric Burns’ documentary on the rich, 75-year history of the preeminent ballet company.
53:20
Explore the creative genius of I.M. Pei as he reshapes the future of architecture in China
Unlock with PBS Passport
1:23:09
The first film biography about the celebrated author, Louis May Alcott.
55:23
Mexican muralist José Clemente Orozco led a life filled with drama, adversity & triumph.
Unlock with PBS Passport
3:25:42
Explore musician Bob Dylan's evolution from folk troubadour to iconic rock star.
55:29
Calder’s aesthetic revolution concerned a somewhat taboo topic in the art world - fun.
Unlock with PBS Passport
1:25:19
Explores the life, works and beliefs of the late writer and civil rights activist.