Susan Desmond-Hellmann has been named to the board of directors of Affymetrix, the company said this week. Desmond-Hellman oversees regulatory affairs, medical affairs, product development, and other functions for Genentech. She also serves on the Biotechnology Industry Organization’s board of directors’ executive committee. In connection with the appointment, Desmond-Hellman received options to purchase 20,000 Affymetrix shares at a price of $32.62. The options are exercisable and expire on Nov. 17, 2014.