onixon_hw2

onixon_hw2 - Olivia Nixon Dr. Crockett ENGR 213 7 Oct. 2010...

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Olivia Nixon Dr. Crockett ENGR 213 7 Oct. 2010 Homework 2: Gene Therapy Gene therapy is new technology, coming onto the scene in the early 1970s when scientists proposed gene surgery for treating inherited diseases. With this they wanted to “cut out” the faulty gene and surgically implant a new gene. This may not be the exact process of gene therapy today, but it is pretty close. There are a few techniques that are used in gene therapy presently to replace genes. The most common technique is the insertion of a normal gene into a nonspecific location within a genome to replace the faulty gene. Another method that deals with swapping a gene is the replacement of a normal gene through homologous recombination. Two other methods include repairing an irregular gene through reverse mutation and regulating a particular gene that can be altered. Most of these processes are executed by the insertion of DNA into a cell with a viral vector. The most common viruses used as vectors are retroviruses, adenoviruses, adeno-associated viruses, and herpes simplex viruses. Some non-viral means of
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onixon_hw2 - Olivia Nixon Dr. Crockett ENGR 213 7 Oct. 2010...

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