Fido Times Two


Since the first groundbreaking animal — Dolly the sheep — was cloned from an adult cell back in 1997, scientists have extended the family of clones to include pigs, monkeys, cows and even household pets like cats and dogs.


First, an unfertilized egg is taken from a donor. In the case of your pet dog, the egg would come from a donor dog.


Next, the genetic information is removed and discarded, turning the egg into a blank slate.


Next, a cell is removed from the animal to be cloned -- in this case, your dog. The genetic information is extracted from this cell and implanted into the empty egg.


The egg with the newly implanted genetic material is then stimulated by placing it in a chemical solution.


The egg begins dividing as if it had been fertilized.


The dividing cells become an embryo.


The resulting embryo is transferred to the uterus of a surrogate mother. Here, another dog will carry the embryo with your dog's genetic information as it develops into a fetus.


The resulting animal that is born is genetically identical to the animal that donated its genetic material -- a clone. In this case, you would wind up with a puppy that had the exact same genetic makeup as your dog, although there's no guarantee that it would have the exact same markings or personality.

While the cloning procedure appears pretty straightforward, there are often many false starts. The scientists who cloned Dolly the sheep had to try 277 times -- going through 277 eggs -- before they were successful.

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