Which statement best describes cellular reprogramming?

Which statement best describes cellular reprogramming?

• A. Replacing damaged cells with stem cells
• B. Using gene techniques to reset cells to a younger state; promising in animals but risky and not ready for humans.
• C. Copying the mind into computers
• D. Freezing tissues for cryonics

Answer: (B)

Cellular reprogramming means using gene techniques to change a mature cell back to a more primitive, versatile state, effectively resetting its developmental age. This captures the idea of turning specialized cells into a younger, pluripotent form, as seen with induced pluripotent stem cells and related aging-reversal research. That’s why the statement describing resetting cells to a younger state best fits, because it directly states what reprogramming aims to achieve and it acknowledges the current status: progress in animals, but significant safety concerns and uncertainty for human use. The other ideas describe different concepts. Replacing damaged cells with stem cells is about a therapeutic replacement strategy rather than the genetic reprogramming process itself. Copying the mind into computers and freezing tissues for cryonics are not about reprogramming cellular identity at all.

Cellular reprogramming means using gene techniques to change a mature cell back to a more primitive, versatile state, effectively resetting its developmental age. This captures the idea of turning specialized cells into a younger, pluripotent form, as seen with induced pluripotent stem cells and related aging-reversal research. That’s why the statement describing resetting cells to a younger state best fits, because it directly states what reprogramming aims to achieve and it acknowledges the current status: progress in animals, but significant safety concerns and uncertainty for human use.

The other ideas describe different concepts. Replacing damaged cells with stem cells is about a therapeutic replacement strategy rather than the genetic reprogramming process itself. Copying the mind into computers and freezing tissues for cryonics are not about reprogramming cellular identity at all.