Biological Dark Matter

Newfound RNA suggests a hidden complexity inside cells

It started with worms that just would not grow up. In the early 1990s, Victor Ambros and his colleagues were conducting a gene hunt. In particular, they were searching for the gene that was mutated in a perplexing strain of Caenorhabditis elegans, the small nematode whose development many biologists study.

This genetic change Ambros hunted had apparently disrupted the worms’ developmental timing.