- A Pasteur experiment
- B Miller-Urey experiment
- C Mendel experiment
- D Meselson-Stahl experiment
Correct answer: B. Miller-Urey experiment
Explanation: Miller-Urey experiment (1953): Stanley Miller and Harold Urey simulated early Earth conditions (NH3, CH4, H2O, H2 + electrical sparks) and produced amino acids. This supported the idea that organic molecules could form abiotically.
Concept context
Origin of life, Darwin's theory, natural selection, speciation, and evidence for evolution.