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

38. Which conclusion about the Miller-Urey experiment is scientifically valid?

A. It completely explained every step in the origin of life.
B. It demonstrated one possible pathway for the formation of biological molecules under early Earth conditions.
✓
C. It proved that modern organisms arise spontaneously.
D. It disproved the existence of amino acids.

📝 Explanation

Correct: The experiment supported only the chemical synthesis of organic molecules. A: It did not explain all stages. C: Spontaneous generation remains disproved. D: Amino acids were successfully synthesized. Concept: Experimental interpretation.

📖 Additional Information

  • It completely explained every step in the origin of life.
  • It demonstrated one possible pathway for the formation of biological molecules under early Earth conditions.
  • It proved that modern organisms arise spontaneously.
  • It disproved the existence of amino acids.

Correct: The experiment supported only the chemical synthesis of organic molecules. A: It did not explain all stages. C: Spontaneous generation remains disproved. D: Amino acids were successfully synthesized. Concept: Experimental interpretation.

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