Question Video: Determining the Advantages and Disadvantages of Genetically Modifying Mosquitoes | Nagwa Question Video: Determining the Advantages and Disadvantages of Genetically Modifying Mosquitoes | Nagwa

Question Video: Determining the Advantages and Disadvantages of Genetically Modifying Mosquitoes Biology • Third Year of Secondary School

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The use of genetically modified mosquitoes to reduce local populations of mosquitoes raises concerns around safety and ethics. Which of the following statements presents a disadvantage of genetically modified mosquitoes? [A] The genetically modified mosquitoes will not be able to reproduce at all, and this will eventually wipe out entire populations of mosquitoes from food chains. [B] Millions of lives could be saved since mosquitoes transmit a number of fatal diseases, such as malaria. [C] Using genetically modified mosquitoes will reduce the need for insecticides.

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Video Transcript

The use of genetically modified mosquitoes to reduce local populations of mosquitoes raises concerns around safety and ethics. Which of the following statements presents a disadvantage of genetically modified mosquitoes? (A) The genetically modified mosquitoes will not be able to reproduce at all, and this will eventually wipe out entire populations of mosquitoes from food chains. (B) Millions of lives could be saved since mosquitoes transmit a number of fatal diseases, such as malaria. (C) Using genetically modified mosquitoes will reduce the need for insecticides.

Mosquitoes are vectors for many harmful, infectious diseases. There are advantages and disadvantage to the use of genetic modification as a way to reduce mosquito populations.

Mosquitoes can be genetically modified to control their populations in different ways. One way is to insert a gene that kills the offspring. This way, the population of mosquitoes decreases until they’re eventually wiped out.

A big advantage of this would be the number of lives saved by reducing the spread of disease. Millions could be saved if mosquitoes were genetically modified in this way, because they transmit numerous fatal diseases, including malaria. So, answer choice (B) indicates an advantage of genetically modified mosquitoes, and is therefore incorrect.

Another advantage in using genetically modified mosquitoes to reduce their population is that it will reduce the need for insecticides. Insecticides are chemicals that can be harmful to the environment and to human health. So, answer choice (C) represents an advantage of the use of genetically modified mosquitoes and is therefore incorrect.

By creating mosquitoes whose offspring die, we are preventing reproduction in the next generation, which would eventually wipe out the population. Bats, birds, fish, and many other animals eat mosquitoes as a part of their food chain. So, by eliminating this population, this could have an ecological impact on these animals.

Therefore, answer choice (A) represents a disadvantage of genetically modifying mosquitoes, and this is the correct answer. The genetically modified mosquitoes will not be able to reproduce at all, and this will eventually wipe out entire populations of mosquitoes from food chains.

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