CLOZE: Passage 1 It was ten years ago, on a warm July night, that a newborn lamb took her first breath in a small shed in Scotland. From the outside, she looked no different from thousands of other sheep born on _ 31 ___ farms. But Dolly, as the world soon came to realize, was no __32__ lamb. She was cloned from one cell of an adult female sheep, __ 33 __ long-held scientific dogma that had declared such a thing biologically impossible. A decade later, scientists are starting to come to grips with just how different Dolly was. Dozens of animals have been cloned since the first lamb --- mice, cats, cows and most recently, a dog --- and it’s becoming __ 34 __ clear that they are all, in one way or another, defective. It’s _ 35 ____ to think of clones as perfect carbon copies of the original. It turns out, though, that there are various degree of genetic _ 36 __. That may come as a shock to people who have paid thousands of dollars to clone a pet only to discover that the baby cat looks and behaves _ 37 ___ like their beloved pet--- with different color coat of fur, perhaps, or a __ 38 __ different attitude toward its human hosts. And these are just the obvious differences. Not only are clones __ 39 __ from the original template by time, but they are also the product of an unnatural molecular mechanism that turns out to be very good at making ___ 40 __ copies. In fact, the process can embed small flaws in the genes of clones that scientists are only now discovering.