What is a key difference between somatic and germline gene therapy?

What is a key difference between somatic and germline gene therapy?

• A. Somatic therapy fixes inherited disorders, while germline therapy does not
• B. Somatic gene therapy targets reproductive cells, while germline therapy targets non-reproductive cells
• C. Somatic gene therapy targets non-reproductive cells, while germline therapy targets reproductive cells
• D. Somatic therapy is only for plants, while germline therapy is for animals

Answer: (C)

Somatic and germline gene therapies differ fundamentally in the types of cells they target and the implications of their modifications. Somatic gene therapy addresses non-reproductive cells, which means that the genetic alterations made during somatic therapy affect only the individual receiving the treatment. Any changes made will not be passed on to the individual's offspring. On the other hand, germline gene therapy is performed on reproductive cells (sperm or eggs) or on embryos, resulting in genetic modifications that can be inherited by future generations. This makes germline interventions a powerful tool for potentially eradicating genetic disorders at the population level, but it also raises ethical concerns due to the permanence and transmission of these changes. The distinction is critical because it influences how treatments are developed, applied, and regulated. In contrast to other options, which mischaracterize the focus and impact of each therapy, the understanding that somatic gene therapy targets non-reproductive cells while germline therapy affects reproductive cells clearly outlines their respective scopes and outcomes.

Somatic and germline gene therapies differ fundamentally in the types of cells they target and the implications of their modifications. Somatic gene therapy addresses non-reproductive cells, which means that the genetic alterations made during somatic therapy affect only the individual receiving the treatment. Any changes made will not be passed on to the individual's offspring.

On the other hand, germline gene therapy is performed on reproductive cells (sperm or eggs) or on embryos, resulting in genetic modifications that can be inherited by future generations. This makes germline interventions a powerful tool for potentially eradicating genetic disorders at the population level, but it also raises ethical concerns due to the permanence and transmission of these changes.

The distinction is critical because it influences how treatments are developed, applied, and regulated. In contrast to other options, which mischaracterize the focus and impact of each therapy, the understanding that somatic gene therapy targets non-reproductive cells while germline therapy affects reproductive cells clearly outlines their respective scopes and outcomes.