题目选项分析

Gene therapy, the use of DNA as a drug to treat disease, has potential applications such as improvement of athletes' performance,

treatment of single gene defects

in individuals, and elimination of certain malicious genes from the DNA passed on to patients' offspring.

Gene therapy, the use of DNA as a drug to treat disease, has potential applications such as improvement of athletes' performance,

single gene defects that can be treated

in individuals, and elimination of certain malicious genes from the DNA passed on to patients' offspring.

题目基本信息

难度：难