Answered

Which is a disadvantage of using DNA technology?

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phytoremediation

herbicide tolerance

gene transfer to nontarget species

Verified Answer :

Answer:

The answer is D. Gene transfer to non-target species.

Explanation:

Using DNA technology we have made several genetically modified crops called GM crops. But sometimes the transgenic trait or gene may effect the non-target species. For example Bt-crops were found damaging the soil health. These pest resistant Bt-crops release Bt toxin near the soil root zones. High levels of Bt toxin can affect the health of soil as well as the soil insects. Hence GM crops must be monitored for the effects on non-target species.

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Answer:

The correct answer is: Gene transfer to non-target species. It is believed within the scientific field that these risks directly affect environmental impacts and need to be assessed on a case by case basis and recommended post-release ecological monitoring. 

Explanation:

Transgenic crops could possibly entail positive or negative indirect environmental effects through changes in agricultural practices such as pesticide and herbicide use and cropping patterns. Agriculture affects the environment it does not matter which type we are talking about. Then it is normal to conclude that the use of new genetic techniques in agriculture will also affect the environment.