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BIO NMDCAT Concept of Evolution
nmdcat.online July 14, 2026

18. A researcher states that the Miller-Urey experiment directly proved the Oparin-Haldane hypothesis. Which is the best evaluation of this statement?

A. Correct, because it produced living organisms.
B. Partially correct, because it supported the chemical synthesis of organic molecules but not the complete origin of life.
✓
C. Incorrect, because no organic compounds were produced.
D. Incorrect, because oxygen was used throughout the experiment.

📝 Explanation

Correct: The experiment supported one step of the hypothesis, not the entire process of life's origin. A: No living cells formed. C: Amino acids were produced. D: Oxygen was excluded. Concept: Interpretation of experimental evidence.

📖 Additional Information

  • Correct, because it produced living organisms.
  • Partially correct, because it supported the chemical synthesis of organic molecules but not the complete origin of life.
  • Incorrect, because no organic compounds were produced.
  • Incorrect, because oxygen was used throughout the experiment.

Correct: The experiment supported one step of the hypothesis, not the entire process of life's origin. A: No living cells formed. C: Amino acids were produced. D: Oxygen was excluded. Concept: Interpretation of experimental evidence.

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