Question

In the form of gene therapy used successfully for severe combined immunodeficiency syndrome, SCID-X 1, how is the genetic engineering of human cells achieved? a. by injecting engineered viruses into the patient's bloodstream b. by injecting engineered viruses into the patient's bone marrow c. by treating a relative's cultured bone marrow cells with genetically engineered viruses and then injecting these cells into the patient's bone marrow d. by isolating the patient's bone marrow cells, infecting them with genetically engineered viruses, and injecting them back into the patient's bone marrow

Answer 1

The genetic engineering of human cells is achieved by treating a relative's cultured bone marrow cells with genetically engineered viruses and then injecting these cells into the patient's bone marrow. So the correct option is C.

What is gene therapy?

A medical approach designed for the treatment or prevention of diseases by fixing genetic problems is called gene therapy. In this treatment,  doctors are able to treat a genetic disorder by changing the genetic makeup of a person.

Gene therapy methods, also referred to as gene addition or gene transfer are used for the purpose of -

• Introduction of a new gene into the cells that will fight diseases.
• Introduction of the correct gene sequence to replace the incorrect sequence that is causing the disease.

Therefore the correct option is C.

Read more about gene therapy, here

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