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U.S. Department of Health and Human Services

Animal & Veterinary

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Genetic Engineering

Genetic engineering is a process in which recombinant DNA (rDNA) technology is used to introduce desirable traits into organisms.  A genetically engineered (GE) animal is one that contains a recombinant DNA (rDNA) construct producing a new trait.  While conventional breeding methods have long been used to produce more desirable traits in animals, genetic engineering is a much more targeted and powerful method of introducing desirable traits into animals. In January 2009, FDA issued a final guidance for industry on the regulation of genetically engineered (GE) animals. 

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