The prize was awarded to Victor Ambros and Gary Ruvkun for their discovery of microRNA, which helps determine how cells develop and function. By Teddy Rosenbluth and Derrick Bryson Taylor Victor ...

STOCKHOLM — The Nobel Prize in medicine was awarded Monday to Americans Victor Ambros and Gary Ruvkun for their discovery of microRNA, a fundamental principle governing how gene activity is regulated.

STOCKHOLM — Two scientists won the Nobel Prize in physiology or medicine on Monday for their discovery of microRNA, tiny bits of genetic material that serve as on and off switches inside cells that ...