Welcome to Iowa Public Television! If you are seeing this message, you are using a browser that does not support web standards. This site will look much better in a browser that supports web standards, but it is accessible to any browser or Internet device. Read more on our technical tips page.

Iowa Public Television

  • NOVA

NOVA | Switching Genes On and Off | PBS

Duration: 04:54
Program: NOVA

How "junk" DNA helped solve an evolutionary mystery.



Post Date: May 26, 2010