Some worry that taken to its extreme, germline editing could create classes of individuals defined by the quality of their engineered genome.
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Many bioethical and research groups believe that research using gene editing in embryos is important for myriad reasons, including to address scientific questions about human biology, as long as it is not used for reproductive purposes at this time.
A. 对
B. 错
Some countries have already allowed genome-editing research on nonviable embryos (those that could not result in a live birth), and others have approved genome-editing research studies with viable embryos.
A. 对
B. 错
The legal and regulatory status of GM foods varies by country, with some nations banning or restricting them, and others permitting them with widely differing degrees of regulation.
A. 对
B. 错
Opponents of GM foods claim that long-term health risks have not been adequately assessed and propose various combinations of additional testing, labeling or removal from the market.
A. 对
B. 错