Practice Quiz

LSAT

Category - Logical Reasoning

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Geneticist: “Adopted children often display different characteristics from their siblings, choosing different careers, values, or hobbies. Clearly some of our preferences are therefore biologically innate, and are not influenced by the environments in which we are raised.”

Which of the following, if true, would most weaken the geneticist’s argument?
  1. Biological children also display very different attitudes in regard to career, values, and hobbies.
  2. Scientists are unable to link any genes to certain propensities.
  3. Many people change their preferences as their life progresses.
  4. Children who are raised together but are far apart in age are also likely to have very different opinions.
  5. Children often try to mimic the preferences of their parents, but then rebel in adolescence.
Explanation
Answer: A - The answer that would most weaken the geneticist’s argument is that biological children also display very different attitudes in regard to career, values, and hobbies. This answer calls into question whether it is biology or environment that influences children, as siblings commonly show differences whether they are related or not.
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