Set 15: Transitions (Intermediate)
Explanation
PASSAGE
Epigenetic modifications alter gene expression without changing the underlying DNA sequence. These changes can be influenced by environmental factors such as diet, stress, and toxin exposure. _______ emerging research suggests that some epigenetic changes may be heritable, challenging the classical view that acquired traits cannot be passed to offspring.
Which choice completes the text with the most logical transition?
Detailed Answer Explanation
This question asks you to choose the transition that best connects two ideas. Heritability of epigenetic changes is a surprising, controversial finding. 'More provocatively' signals this escalation to a more radical claim. Transitions signal the relationship between sentences or paragraphs. Determine the logical relationship (addition, contrast, cause-effect, example) and select the transition that accurately expresses it. The right transition makes the relationship between ideas crystal clear. Consider what logical connection exists: Is the second idea adding to the first? Contrasting it? Showing a result? The transition should accurately reflect this relationship.
Key Evidence:
• "influenced by environmental factors"
• "challenging the classical view"
Why others are wrong: B (Example - heritability is a radical extension, not an example of environmental influence.), C (Expectation - this finding challenges classical expectations.), D (Restatement - heritability is a new, more dramatic claim, not a restatement.).
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