February 21, 2008
"Lampreys, jawless fish closely related to the first vertebrates, possess 41 types of a little-known genetic regulator called microRNA. Some biologists say microRNA answers the mystery of how backbones evolved.
Why aren't you a spineless sack of protoplasm? Because of a little-known molecule called microRNA, say Dartmouth College biologists.
In a study published this month in the Proceedings of the National Academy of Science, researchers found 41 types of microRNA -- a molecular "off" signal for genes -- that are unique to vertebrates."
No comments:
Post a Comment