In the form of gene therapy used successfully for severe combined immunodeficiency syndrome (SCID)-X1,the genetic engineering of human cells is done _____.
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

Question

Quizplus · Accepted Answer

In the gene therapy used for SCID-X1, the patient's bone marrow cells are isolated, genetically modified using engineered viruses, and then reinjected back into the patient's bone marrow. This method ensures that the genetic modification is integrated into the patient's own cells and can replicate normally, which leads to the correction of the genetic defect causing the disease.

In the Form of Gene Therapy Used Successfully for Severe