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GATE 2022 MT – Question 6

General Aptitude · Analytical Aptitude: Logical Reasoning and Deduction · 2 marks · Multiple choice

Mosquitoes pose a threat to human health. Controlling mosquitoes using chemicals may have undesired consequences. In Florida, authorities have used genetically modified mosquitoes to control the overall mosquito population. It remains to be seen if this novel approach has unforeseen consequences. Which one of the following is the correct logical inference based on the information in the above passage?

  1. Using chemicals to kill mosquitoes is better than using genetically modified mosquitoes because genetic engineering is dangerous
  2. Using genetically modified mosquitoes is better than using chemicals to kill mosquitoes because they do not have any side effects
  3. Both using genetically modified mosquitoes and chemicals have undesired consequences and can be dangerous
  4. Using chemicals to kill mosquitoes may have undesired consequences but it is not clear if using genetically modified mosquitoes has any negative consequence Consider the following inequalities.

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Correct answer: (D) Using chemicals to kill mosquitoes may have undesired consequences but it is not clear if using genetically modified mosquitoes has any negative consequence Consider the following inequalities.

Explanation

The passage explicitly allows undesirable chemical effects while leaving genetically modified mosquito consequences unresolved. It does not establish superiority or absence of side effects. This is precisely **D**.