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Dr. Linton serves as the lead director of our board of directors. He was appointed lead director in March 2004 by the independent members of the board of directors. As lead director, Dr. Linton performs the usual responsibilities of a lead director including acting as a liaison between management and the board of directors. Since 1978, Dr. Linton has served as the Chairman, President and Chief Executive Officer of Promega Corporation, Madison, Wisconsin, a privately-held life science supply company founded by Dr. Linton. Dr. Linton received a B.S. degree from University of California, Berkeley in 1970 and honorary doctorate degrees from Hannam University (Korea) in 2004 and the University of Wisconsin Madison in 2015. Dr. Linton is a director of ALDA (Analytical, Life Science & Diagnostics Association), a director of Heffter Research Institute (a non-profit research institute), a member of the Supervisory Board of Eppendorf AG, Hamburg (a private life sciences company), founder and Executive Director of Usona Institute (a non-profit medical research organization) and President of the BioPharmaceutical Technology Center Institute (a non-profit organization). Dr. Linton brings to the board extensive executive, international operations management and technical expertise in the life sciences industry, as well as significant experience in strategic planning, corporate governance, and executive compensation matters.

Mr. Linton serves on the Company’s Nominating Committee.