Andrew Z. Fire receiving his Nobel Prize from His Majesty King Carl XVI Gustaf of Sweden at the Stockholm Concert Hall, 10 December 2006. Copyright © The Nobel Foundation 2006
Photo: Hans Mehlin

Andrew Z. Fire after receiving his Nobel Prize at the Stockholm Concert Hall, 10 December 2006. Copyright © The Nobel Foundation 2006
Photo: Hans Mehlin

Dr Ylva Westerberg and Andrew Z. Fire at the Nobel Banquet, 10 December 2006. Copyright © Nobel Media AB 2006
Photo: Hans Mehlin

Andrew Z. Fire delivering his banquet speech.

© Nobel Media AB 2006. Photo: Hans Mehlin

Nobel Laureates Craig C. Mello (second from left) and Andrew Z. Fire (right) with wives Edit Mello (left) and Rachel Krantz (second from right) at the Nobel Banquet, 10 December 2006. Copyright © The Nobel Foundation 2006
Photo: Torbjörn Zadig

Their Majesties Queen Silvia and King Carl XVI Gustaf of Sweden (middle) posing with Nobel Laureate Andrew Z. Fire and his wife, Rachel Krantz (left), and Nobel Laureate Craig C. Mello and his wife, Edit Mello (right), at the Nobel Banquet, 10 December 2006. Copyright © The Nobel Foundation 2006
Photo: Torbjörn Zadig

Nobel Laureates Craig C. Mello and Andrew Z. Fire with their wives, Edit Mello and Rachel Krantz, posing with the Royal Swedish siblings (from left: Prince Carl Philip, Princess Madeleine and Crown Princess Victoria). Copyright © The Nobel Foundation 2006
Photo: Torbjörn Zadig

All the 2006 Nobel Laureates assembled for a group photo during their visit to the Nobel Foundation, December 12, 2006. Left to right: John C. Mather, Edmund S. Phelps, Roger Kornberg, Dipal Chandra Barua (representing Grameen Bank), Orhan Pamuk, Andrew Z. Fire, Craig C. Mello, Muhammad Yunus, and George F. Smoot. Copyright © The Nobel Foundation 2006
Photo: Torbjörn Zadig

Andrew Z. Fire and young students from SIYSS (Stockholm International Youth Science Seminar) during the Nobel Foundation reception at the Nordic Museum in Stockholm, 9 December 2006. Copyright © Nobel Media AB 2006
Photo: Frida Westholm

Andrew Z. Fire delivering his Nobel Lecture at Karolinska Institutet in Stockholm, 8 December 2006. Copyright © Nobel Media AB 2006
Photo: Hans Mehlin

Andrew Z. Fire, like many Nobel Laureates before him, autographs a chair at Kafé Satir at the Nobel Museum in Stockholm, 6 December 2006.

Copyright © The Nobel Museum 2006 Photo: Fredrik Persson

Andrew Z. Fire (left) and Craig C. Mello at the interview in Stockholm, December 6, 2006. The interviewer is Adam Smith, Editor-in-Chief of Nobelprize.org. Copyright © Nobel Media AB 2006
Photo: Hans Mehlin

Andrew Fire paced in his Stanford, California, backyard early this morning as he fielded phone calls from the press regarding his research and reaction to being awarded a Nobel Prize.

Copyright © Stanford University News Service 2006 Photo: Linda Cicero

Nobel Laureate Andrew Fire fielded questions from the press after the announcement.

Copyright © Stanford University News Service 2006 Photo: Linda Cicero

Stanford President John Hennessy, Nobel Laureate Andrew Fire and Philip Pizzo, Dean of the School of Medicine, appeared together at a press conference after the announcement of the 2006 Nobel Prize in Physiology or Medicine.

Copyright © Stanford University News Service 2006 Photo: Linda Cicero

Three Nobel Laureates: from left, Roger Kornberg, 2006 Nobel Laureate in Chemistry; Arthur Kornberg, 1959 Nobel Laureate in Physiology or Medicine; and Andrew Z. Fire, Nobel Laureate in Physiology or Medicine 2006.

Copyright © Stanford News Service 2006 Photo: Linda A. Cicero