NOVA scienceNOW

RNAi

Clip | 14m 24s Video has closed captioning.

A petunia leads to the discovery of modest little molecules with enormous medical promise.

Aired: 07/01/05

Rating: TV-G

Problems Playing Video? | Closed Captioning

Funding for NOVA ScienceNOW is provided by the National Science Foundation and the Alfred P. Sloan Foundation.