blackbearnh writes "CNN is reporting about the world of designer mice. No, not the kind you click, the kind that scamper around and eat cheese. An effort is underway to produce mice with each of the 20-25,000 individual mouse genes "knocked out", which could lead to novel new treatments for humans. It turns out that after fully sequencing the mouse genome, the little fellas are almost identical to humans. From the article: 'A mouse with arthritis runs close to $200; two pairs of epileptic mice can cost 10 times that. You want three blind mice? That'll run you about $250. And for your own custom mouse, with the genetic modification of your choosing, expect to pay as much as $100,000.'"