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Genetic Enhancements Make Mice See Red

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BALTIMORE, Md., March 23, 2007 -- Researchers have transformed the limited color vision of mice by introducing a single human gene into a mouse chromosome. The gene codes for a light sensor that mice do not normally possess, and its insertion allowed the mice to see colors as never before, a sign that the brain can adapt far more rapidly to new sensory information than anticipated. The work, by scientists at the Johns Hopkins School of Medicine and their colleagues, also suggests that when the first ancestral primate inherited a new type of photoreceptor more than 40 million years ago, it probably experienced immediate...Read full article

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