DNA Discoveries Before Watson and Crick
Season 33
Episode 1
About the Episode
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.
Aired:
| Expires: | Runtime: 3m 00s
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Extras
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![Sarah Thankam Mathews: After All This [Extended Audio Description]](data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZlcnNpb249IjEuMSIgaGVpZ2h0PSIxNTZweCIgd2lkdGg9IjI4MHB4Ij48L3N2Zz4=)
Sarah Thankam Mathews: After All This [Extended Audio Description]
Follow author Sarah Thankam Mathews as pressure mounts to follow up her acclaimed debut novel.17:58 -
Sarah Thankam Mathews: After All This [ASL]
Follow author Sarah Thankam Mathews as pressure mounts to follow up her acclaimed debut novel.15:37 -
Sarah Thankam Mathews: After All This
Follow author Sarah Thankam Mathews as pressure mounts to follow up her acclaimed debut novel.15:38 -
Camille A. Brown: Giant Steps [Extended Audio Description]
Follow the Broadway choreographer as she elevates the possible with bold explorations of movement.17:14 -
Camille A. Brown: Giant Steps [ASL]
Follow the Broadway choreographer as she elevates the possible with bold explorations of movement.15:25 -
Camille A. Brown: Giant Steps
Follow the Broadway choreographer as she elevates the possible with bold explorations of movement.15:25 -
In The Making | Season 3
Meet eight cultural icons on their journeys to becoming masters of their artistic disciplines. -
American Masters Shorts | Season 2
Explore new documentary shorts about artists who defy the odds to create remarkable work. -
Ten Times Better
The story of George Lee, a pioneering Asian dancer who later became a Vegas blackjack dealer.30:48 -
In The Making: Season 3
Eight cultural icons on their journeys to becoming masters of their artistic disciplines.1:02
![Sarah Thankam Mathews: After All This [Extended Audio Description]](https://cdn.grove.wgbh.org/dims4/default/bcdc0ea/2147483647/strip/true/crop/1920x1070+0+5/resize/280x156!/quality/70/?url=https%3A%2F%2Fimage.pbs.org%2Fvideo-assets%2FIND5Jl2-asset-mezzanine-16x9-aX2Qnlf.jpg)
![Sarah Thankam Mathews: After All This [ASL]](https://cdn.grove.wgbh.org/dims4/default/5308bd3/2147483647/strip/true/crop/1920x1070+0+5/resize/280x156!/quality/70/?url=https%3A%2F%2Fimage.pbs.org%2Fvideo-assets%2FV0cukDW-asset-mezzanine-16x9-1yXcVc1.jpg)
![Camille A. Brown: Giant Steps [Extended Audio Description]](https://cdn.grove.wgbh.org/dims4/default/1baa1d2/2147483647/strip/true/crop/1920x1070+0+5/resize/280x156!/quality/70/?url=https%3A%2F%2Fimage.pbs.org%2Fvideo-assets%2FqsbWv1R-asset-mezzanine-16x9-en1YRFr.jpg)
![Camille A. Brown: Giant Steps [ASL]](https://cdn.grove.wgbh.org/dims4/default/e930822/2147483647/strip/true/crop/1920x1070+0+5/resize/280x156!/quality/70/?url=https%3A%2F%2Fimage.pbs.org%2Fvideo-assets%2FqoEwy0z-asset-mezzanine-16x9-93mDYAm.jpg)
