IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This chart was used in the National ...

On May 27, 1961, Heinrich Matthaei, a postdoc working with NIH scientist Marshal Nirenberg, placed synthetic polyuracil RNA into 20 test tubes to see what it would produce. Each tube contained ...

Rapid advances in sequencing technologies have transformed our ability to diagnose human genetic disorders, yet many patients still lack a molecular ...

Human genetic diversity and evolution rely on new mutations and exchange of DNA between chromosomes during the generation of sex cells, in a process called recombination. Recombination manifests as ...

The Indigenous peoples of the Bolivian highlands are survivors. For thousands of years they have lived at altitudes of more than two miles, where oxygen is about 35 percent lower than at sea level.