Question:

Thousands of years ago, some people began dairy farming. This coincided with a number of mutations in a particular gene that resulted in these people developing the ability to digest dairy milk.
Based on the given passage, which of the following can be inferred?

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For inference-based questions, focus on identifying information explicitly supported by the passage. Avoid overgeneralizations or assumptions beyond the given context.
Updated On: Jan 24, 2025
  • All human beings can digest dairy milk.
  • No human being can digest dairy milk.
  • Digestion of dairy milk is essential for human beings.
  • In human beings, digestion of dairy milk resulted from a mutated gene.
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The Correct Option is D

Solution and Explanation

The passage explains that thousands of years ago, dairy farming began, and certain genetic mutations allowed some people to develop the ability to digest dairy milk. Based on this information, let us analyze the options: Step 1: Analyze each option. (1) All human beings can digest dairy milk: This is incorrect because the passage only refers to "some people" who developed the ability, not all human beings. (2) No human being can digest dairy milk: This is incorrect because the passage explicitly mentions that some people developed this ability due to genetic mutations. (3) Digestion of dairy milk is essential for human beings: This is incorrect because the passage does not suggest that digestion of dairy milk is essential, only that it became possible for some people. (4) In human beings, digestion of dairy milk resulted from a mutated gene: This is correct because the passage explicitly states that genetic mutations enabled the ability to digest dairy milk. Step 2: Select the correct option. The correct inference from the passage is that digestion of dairy milk in human beings resulted from a mutated gene.
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