Source:http://linkedlifedata.com/resource/umls/id/C1456541
MEDLINEPLUS: <p>Genes are the building blocks of inheritance. Passed from parent to child, they contain instructions for making proteins. If genes don't produce the right proteins or don't produce them correctly, a child can have a <a href='http://www.nlm.nih.gov/medlineplus/geneticdisorders.html'>genetic disorder</a>. </p><p>Gene therapy is an experimental technique that uses genes to treat or prevent disease. The most common form of gene therapy involves inserting a normal gene to replace an abnormal gene. Other approaches include</p><ul><li> Swapping an abnormal gene for a normal one</li><li> Repairing an abnormal gene</li><li> Altering the degree to which a gene is turned on or off</li></ul><p>Although there is much hope for gene therapy, it is still experimental. </p><p style="font-weight:bold;font-style:italic;">Genetics Home Reference</p>