Nevins, Joseph R., Ph.D., Investigator 237 
Duke University Medical Center 
Gene Regulation in Animal Cells 
Nussbaum, Robert L., M.D., Associate Investigator 239 
University of Pennsylvania School of Medicine 
Molecular Genetics of X-linked Disease 
Olson, Maynard V., Ph.D., Investigator 241 
Washington University School of Medicine, St. Louis 
Analysis of the Yeast and Human Genomes 
Orkin, Stuart H., M.D., Investigator 242 
The Children's Hospital, Boston 
Genetic Hematology 
Overbeek, Paul A., Ph.D., M.B.A., Assistant Investigator 244 
Baylor College of Medicine 
Specification of Left- Right Polarity 
Page, David C, M.D., Assistant Investigator 246 
Massachusetts Institute of Technology 
The X and Y Chromosomes in Mammalian Development 
Palmiter, Richard D., Ph.D., Investigator 248 
University of Washington, Seattle 
Transgenic Approaches for Studying Development 
Perrimon, Norbert, Ph.D., Assistant Investigator 250 
Harvard Medical School 
Genetic and Molecular Dissection of Signal Transduction Pathways 
Reeders, Stephen T., M.D., Associate Investigator 252 
Yale University School of Medicine 
Molecular Genetics and Chromosome Structure 
Rosbash, Michael, Ph.D., Investigator 254 
Brandeis University, Waltham 
Molecular Genetics ofRNA Processing and Circadian Rhythms 
Sakonju, Shigeru, Ph.D., Assistant Investigator 255 
University of Utah School of Medicine 
Molecular Analysis of Development in Drosophila melanogaster 
Seidman, Jonathan G., Ph.D., Investigator 257 
Harvard Medical School 
Cardiac Myosin Mutations and Hypertrophic Cardiomyopathy 
Singh, Harinder, Ph.D., Assistant Investigator 259 
The University of Chicago 
Regulation of Gene Activity During B Cell Development 
Soriano, Philippe M., Ph.D., Assistant Investigator 261 
Baylor College of Medicine 
Developmental Genetics 
Steitz, Joan Argetsinger, Ph.D., Investigator 263 
Yale University School of Medicine 
Structure and Function of Small Ribonucleoproteins in Mammalian Cells 
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