1.   Make a random pattern of, say, square dots on a transparent sheet of paper, and make an identical copy.

2.   A more likely use is making identical copies a steers, sheep or pigs with specific characteristics for breeding.

3.   But producing a clone might not mean creating an identical copy of a pet.

4.   Geneticists can determine whether males share common male ancestors because an identical copy of the Y chromosome passes from father to son.

5.   He shudders at the thought of identical copies.

6.   If the process worked, the result would be an identical new copy of Y, a clone.

7.   It does not matter whether there are other identical copies elsewhere in the cosmos.

8.   Others are identical copies made one at a time by men with primitive but obviously well-suited machine tools.

9.   Scientists in Japan have cloned eight calves from cells they gathered from a slaughterhouse, creating eight identical copies of a single cow.

10.   Scientists in Japan report that they have cloned eight calves from cells they gathered from a slaughterhouse, creating eight identical copies of a single cow.