How genes are silenced - Molecular snapshot reveals the mechanics of RNA interference.
IMHO, the last link isn't the worst development. I search on Yahoo first. Results are often Wikipedia links. Scientific and technical searches will have more credibility. I wouldn't trust Wikipedia for anything dealing with politics.
FReepmail me if you want on or off my health and science ping list.
And the little ice age just happened to line up exactly with the Maunder minimum...
Why the constant search to avoid the obvious?