In 1869, Friedrich Miescher isolated "nuclein," DNA with associated proteins, from cell nuclei. He was the first to identify DNA as a distinct molecule.
FRIEDRICH MIESCHER (1844-1895)
1879 picture of the laboratory where Miescher isolated nuclein. The lab was run by Felix Hoppe-Seyler, and located in the vaults of an old castle.
Phoebus Levene, circa 1930.
Friedrich Miescher and Phoebus Levene research nuclein, protein. and DNA.
Portrait of Friedrich Miescher.
The discovery of enzymes that could cut and paste DNA made genetic engineering possible.
Eric Lander talks about building on scientific discovery.
Charles Best (L) and Frederick Banting (R) discovered insulin, 1928.
Characterizing the resistence to the discovery of DNA as the transforming factor: running against existing dogma.