Gene therapy attempts to treat an inherited disease by
Correct answer: A. introducing a normal copy of the faulty gene into the patient's cells
- A. introducing a normal copy of the faulty gene into the patient's cells
- B. removing the affected organ
- C. giving the patient a protein rich diet
- D. vaccinating the patient against the disease
Explanation
A working allele is delivered, usually inside a modified virus or a liposome, so that the patient's own cells can make the missing protein, and cystic fibrosis and severe combined immunodeficiency are the standard examples. Somatic gene therapy treats the patient only, while germ line therapy would alter every descendant and is banned in most countries. Current difficulties are keeping the gene expressed and avoiding an immune reaction to the vector.
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About Biotechnology and Health Care
Biotechnology applies genetic engineering, cell culture and recombinant DNA methods to medicine and public health. The material includes production of insulin, vaccines and antibiotics, diagnostic techniques, gene therapy, genetically modified organisms and the ethical concerns surrounding manipulation of human genes.
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