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Genetic engineering is a targeted and powerful method of introducing desirable traits into animals using recombinant DNA (rDNA) technology. DNA is the chemical inside the nucleus of a cell that carries the genetic instructions for making living organisms. New traits can be introduced into animals. Here's how it works for animals engineered to produce a human pharmaceutical. 1. Generation of the DNA Construct, A. Milk Protein Promoter DNA allows for expression only in goat mammary glands. B. Therapeutic Protein Gene encodes a protein known to treat disease in people. C. Terminator Sequence assures that only the gene of interest is controlled by A. D. Other DNA Sequences helps with the introduction of the new combination DNA strand. 2. The DNA construct is created by combining A, B, C and D. 3. This new DNA strand is then introduced by any of a number of methods into an animal cell, such as an egg, that is then used to produce a genetically engineered animal. 4. The first genetically eng...