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Cloning is the process of copying DNA to recreate living organisms.
Cloning starts all they way back in 1938 when Hans Spemann had the first idea about placing a nucleus into an enucleated oocyte. In 1996 a sheep named Dolly was cloned by Keith Campbell. Also in 2009 a Pyrenean ibex was the first extinct species cloned.
Many different types of animals have been cloned for example mice, cows, rabbits, wolves, and dogs.
There are two types of cloning, reproductive and theraputeic.
Reproductive cloning is the duplication of an existing organism. Therapeutic cloning is the cloning of cells to help cure diseases.
Cloning creates controversy for several reasons. Broadly categorized as concern for human safety and concern over improper or unethical animal treatment.
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