Although evolutionary biologists long held that genetic mutations driving adaptive traits arise entirely at random prior to environmental exposure, recent studies of epigenetically inherited stress responses in marine invertebrates suggest that environmental stressors can systematically alter chromatin structure in parental germ cells, thereby pre-adapting subsequent generations to specific ecological pressures without modifying the underlying DNA sequence.
Which of the following is most strongly supported by the statement above regarding the recent studies of marine invertebrates?
- AEnvironmental stressors cause direct, permanent modifications to the underlying DNA sequence in parental germ cells.
- Subsequent generations can acquire pre-adaptive traits suited to environmental pressures without any change occurring in their underlying DNA sequence.Cevap
- CTraditional evolutionary theories regarding random genetic mutations have been completely disproven for all living organisms.
- DEvolutionary biologists have unanimously abandoned the view that adaptive mutations occur prior to environmental exposure.
- EMarine invertebrates are the only organisms capable of epigenetically transmitting adaptive stress responses to offspring.
Cevap
Subsequent generations can acquire pre-adaptive traits suited to environmental pressures without any change occurring in their underlying DNA sequence.
The correct answer directly restates the core inference of the sentence: environmental stressors alter chromatin structure to pre-adapt offspring to specific pressures while explicitly keeping the underlying DNA sequence unmodified.
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Single-Sentence Logical Inference
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