From the Independent:
“Researchers have developed a technique to create genetically modified monkeys that suffer from human illnesses. … The “transgenic” monkeys were created by inserting a gene from a jellyfish into their embryos to make them glow under ultraviolet light – a standard test to see if the technique worked. When the monkeys became adults they passed on this transgenic trait to a subsequent generation of offspring. This “proof of principle” suggests that other genes could also be manipulated to create animals that mimic human disorders. This is already possible in mice.”
Breakthrough with transgenic monkeys