1992-pres.

Professor, Department of Molecular Biology, Princeton University

1999-pres.

Professor, Woodrow Wilson School of Public and International Affairs

Core Faculty, Science, Technology & Environmental Policy Program

Member, The Center for Health & Wellbeing

Member, Program in Law and Public Affairs

Member, The Office of Population Research

2000-pres.

Faculty Associate, Princeton Environmental Institute

1996-2002

Member, Program in Neuroscience, Princeton University

1990-1999

Faculty Associate, Department of Ecology and Evolutionary Biology, Princeton University

1996-1997

Visiting Scientist, Université de Nice, Faculty of Medicine, Nice, France

1989-1990

Visiting Scientist, Institut Pasteur, Paris, France

1987-1992

Associate Professor, Department of Molecular Biology, Princeton Univ.

1984-1987

Assistant Professor, Department of Molecular Biology, Princeton Univ.

1982-1984

Assistant Professor of Genetics & Adjunct Assistant Professor of Microbiology, State University of New York at Stony Brook

1980-1984

Senior Staff Investigator, Cold Spring Harbor Laboratory

1979-1980

Associate at the Sloan-Kettering Institute for Cancer Research

1979-1980

Assistant Professor of Biology, Sloan-Kettering Division, Cornell University Graduate School of Medical Science

2008

Advisory Board, "The Reason Project" [501(c)(3) charitable foundation]

2006-pres.

Board of Trustees, American Council on Science & Health (New York)

2006-pres.

Editor, Ethics in Science and Environmental Politics (international journal of the Eco-ethics international union)

2000-pres.

Scientific Advisory Board, Institute of Systems Biology (Seattle)

2007-pres.

Board of Directors, Sir Groovy online music catalogue

2000-2006

Board of Scientific Advisors, American Council on Science & Health

2000-2003

Scientific Advisory Board, IDgene (Tel Aviv)

1997-2004

Associate Editor, The Encyclopedia of Genetics (Academic Press)

1999-2001

Board of Directors, Genetics Society of America

2000

Scientific Advisory Board, McGraw-Hill Companies trade science

1990-2001

Co-editor-in-chief, Mammalian Genome

1998

Co-chairman, Second Annual Congress on Transgenics and Cloning

1997-1999

Governing Secretariat, International Mammalian Genome Society

1997-1998

Member, NIH Mammalian Genetics Grant Review Committee

1997-2000

Member, Committee on Standardized Genetic Nomenclature for Mice

1994-2000

Editorial Advisor, Genetics Abstracts

1991-1992

Member, NIH Genome Grant Review Committee

1990-1996

Chair, International Mouse Chromosome 17 Committee

1988-1990

Member, Task Force on New Reproductive Practices for the New Jersey State Commission on Legal & Ethical Problems in the Delivery of Health Care

1987-1990

Associate Editor, Journal of Heredity

1987

Member, Governor's Scientific Advisory Committee (New Jersey)

1984-1988

Member, American Cancer Society Scientific Advisory Committee

1984-1987

Member, Genetics Society of America Meetings & Programs Committee

1982

Co-organizer of Cold Spring Harbor Teratocarcinoma Stem Cell meeting

2004-2005

Chair, Princeton University Committee on Public Lectures

2004-2005

Member, Committee on Tanner Lectures

2002-2004

Member, Princeton University Committee on Public Lectures

1998-pres.

Faculty Fellow at Forbes College

1998-2000

Member, Animal Use and Care Committee

2000-2003

Member, University Committee on Admissions

1994-1996

Member, University Committee on Course of Study

1992-1994

Member, University Resources Committee

1985-1999

Molecular Biology Departmental Representative