DNA Discoveries Before Watson and Crick

American Masters
Air Date: 01/02/19

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.

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Terrence McNally: Every Act of Life
S33 Ep8 | 1h 22m 18s
Air Date: 06/14/19 | Expires: 07/05/24 | Rating: TV-PG

Explore four-time Tony-winning playwright Terrence McNally's work in theater.

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