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Gene therapy and gene-based drugs are two ways we could benefit from our growing mastery of genetic science. But there will be others as well. Here is one of tile remarkable therapies on the cutting edge of genetic research that could make their way into mainstream medicine in the coming years.
While it’s true that just about every cell in the body has the instructions to make a complete human, most of those instructions are inactivated, and with good reason: the last thing you want for your brain cells is to start churning out stomach acid or your nose to turn into a kidney. The only time cells truly have the potential to turn into any and all body parts is very early in a pregnancy, when so called stem cells haven’t begun to specialize.
Yet this untapped potential could be a terrific boon to medicine. Most diseases involve the death of healthy cells -- brain cells in Alzheimer’s, cardiac cells in heart disease, pancreatic cells in diabetes, to
A. The principle of gene therapy is applicable to that of cloning.
B. The isolation of stem cells is too difficult to be feasible.
C. It is reasonable for all body instructions to be activated.
D. Cloned animals will eventually take control of the world.