Almost 30 years later, the diversity is even greater, as a result of the "important changes in the underlying knowledge base [in the biological sciences] in the last decade," according to NRC's 1995 report, Research-Doctorate Programs in the United States: Continuity and Change (M.L. Goldberger, B.A. Maher, P.E. Flattau, eds., National Academy Press, Washington, D.C.).
"There's been enormous growth in the biosciences and enormous changes as new technologies and new fields have emerged," asserts Pamela Mellon, a professor of reproductive medicine and neurosciences at the University of California, San Diego, and an NRC report committee member. "The main point that I think is important to remember about the evolution of the biosciences is that it is in a sense driven by the great leap forward that the science has made in redefining itself. The old lockstep definitions no longer apply because we're all using new technology to approach questions that ...
