Fluorescent felines

The fluorescent cat on the left, whose skin glows in ultraviolet light, is one of two created at Gyeongsang National University in Jinju City, South Korea, in 2007.

The gene for the fluorescent protein was added to skin cells, which were then cloned by transferring their nucleus to empty eggs.

The cats were a practice run; using fluorescent proteins make it very obvious when animals have been successfully modified.


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