Tweaking a Gene Makes Muscles Twice as Strong (IMAGE)

Salk Institute

Tweaking a Gene Makes Muscles Twice as Strong

Caption

This image shows dramatically enhanced muscle tissue in a high performing mouse, which has greater numbers of mitochondria (brown), the energy factories of cells. Through genetic engineering, the mouse developed stronger muscles than normal, even though it was inactive. In the image, a blood vessel (seen in cross section) is red and muscle fibers are blue.

Credit

Courtesy of Salk Institute for Biological Studies

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