You are right. A cloned animal or plant is an exact genetic duplicate of a single individual obtained without breeding. Some GMOs are also clones, but so are some non-GMOs. Grafting apple trees is a form of cloning, and without it we would not be able to propagate most types of apples.
Cloning animals is more complex, since we have to mimic the process of egg fertilization in order to have the resulting animal develop properly. The process of normal egg fertilization with sperm activates certain mechanisms in the egg that are still not fully understood; one of the reasons why cloning animals is still not a very efficient procedure.
The concern about using cloning is that if not controlled carefully you will end up with same problems that occur through inbreeding of purebred animals. Genetic diversity and mixing of genes through normal breeding is what ensures that animals can survive through the generations. Just look at the physical problems that can associated with some purebred breeds of horses, dogs and other animals where most of the breed can be traced back to only a handful of founder animals. Eventually the lack of genetic diversity leads to problems. Cloning will just accelerate this process.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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