MARTIN CHALFIE, PhD, is William R. Kenan Jr. Professor of Biological Sciences at Columbia University. He is world renowned for introducing the use of GFP as a biological marker. A member of the National Academy of Sciences, Dr. Chalfie serves on the editorial boards of Genome Biology and Molecular Biology of the Cell.

STEVEN R. KAIN, PhD, manages the Applications Gene Expression Group for Agilent Technologies. While director of cell biology at Clontech Laboratories, he was responsible for commercializing the first products based on GFP and produced the popular EGFP variant. He has twelve years' experience with a variety of biotechnology firms in the San Francisco Bay Area.