Answer
Victor Ambros was born in 1953. He is an American molecular biologist who is known for his work on RNA interference (RNAi). In 1993, Ambros and his colleagues discovered that a small RNA molecule could block the expression of a specific gene in the worm Caenorhabditis elegans. This discovery led to the development of RNAi as a tool for studying gene function in a wide variety of organisms.