MINNEAPOLIS, Minn., May 30, 2012 /PRNewswire/ -- World-class triathlete Laura Bennett claimed the final U.S.

Researchers at the RIKEN SPring-8 Center in Harima, Japan have clarified the crystal structure of quinol dependent nitric oxide reductase (qNOR), a bacterial enzyme that offers clues on the origins of our earliest oxygen-breathing ancestors.

Experiments on animals have been the subject of criticism for decades, but there is no prospect of a move away from them any time soon.

The BioSciences Magazine EurekaMag.com publishes insights into specific topics in the biological sciences.

With an eye toward understanding DNA replication, Cornell researchers have learned how a helicase enzyme works to actually unzip the two strands of DNA.