Copy Cat, the world's first cloned cat, has had a litter of three kittens. The kittens were born in September and appear healthy. However, Copy Cat is not the first cloned cat to give birth. In New Orleans, two cloned wild African cats successfully mated to produce kittens.Roslin Institute in Edinburgh cloned the first mammal, Dolly the sheep, in 1997. It died prematurely from progressive lung disease at the age of six.
Copy Cat was cloned in 2001 at Texas A&M University, which has also cloned cattle, swine, goats, horses and a deer.
The vast majority of cloning attempts fail. Copy Cat was the only live birth of the 2 pregnancies from 87 cloned cat embryos transferred into surrogate females. Also, cloning cannot be relied upon to create an identical copy of an animal. Because fur patterning is determined in the womb rather than by genes, Copy Cat does not look like her genetic mother.
1 comment:
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