Commentary: Tinkering With Genes: Time For A National Debate

At a small lab outside Vancouver, 15 ordinary-looking mice scramble around their cages. Their coats are glossy white or black, their noses soft pink, their tails aquiver. But put a few cells from their bodies under a microscope, and you'll see something amazing: All 15 carry a chromosome, made in the laboratory, that they inherited from their mother.

To continue reading this article you must be a Bloomberg Professional Service Subscriber.