genes for muscles or genes for running?
I read an online article today by Maggie Fox, a health and science editor at Reuters. The article is about a mutation in one breed of dogs that seems to enable the dog to run much faster. Here's an excerpt from the article: A gene that helps control muscle development makes all the difference between an elite racing dog and a freak that is put down at birth, scientists reported on Tuesday. Racing whippets that carried one copy of the mutated gene were among the fastest runners, but those that carried two copies became unattractively bulky and were usually destroyed by breeders, the researchers said. The next step may be to look for this gene in human athletes to see if it helps explain what makes some competitors excel, said Dr. Elaine Ostrander of the National Human Genome Research Institute, who led the study. The gene controls a muscle protein called myostatin. "Our work is the first to link athletic performance to a mutation in the myostatin gene and could have im