This site will lead visitors to the many institutes of NIH, including the National Human Genome Research Institute (NHGRI).
National Library of Medicine's Profiles in Science site
This site includes a special on-line collection of NIH Nobel Prize winners' papers and photographs, including those of Marshall Nirenberg.
The museum site of the institute that grants the Nobel Prize includes biographical information on prize winners, including Marshall Nirenberg, as well as the full text of Nobel lectures.
This site is an explication of Mendel's paper, reprinted here in German and English, and includes essays about the work as well as photographs, a historic tour of Brno and the Augustinian monastery where Mendel did his work, and other resources.
A Science Odyssey
This site includes several interactive lessons where visitors simulate the process of DNA replication and protein synthesis. The rules of these processes are then explained in detail.