Practice question

Stanley Miller under Harold Urey's guidance in early 1950s tested Oparin-Haldane hypothesis experimentally. His apparatus circulated methane, ammonia, hydrogen and water vapor past electric sparks simulating lightning, collecting products via condensation. Chromatography revealed amino acids such as glycine and alanine, demonstrating abiotic synthesis. The 1953 publication became landmark evidence for chemical evolution. Dating this experiment anchors timeline of experimental abiogenesis research. Therefore 1953 marks historic demonstration bridging theoretical chemogeny to laboratory verification. This concept integrates genetics, ecology and molecular evidence, frequently tested in NEET, GATE and CSIR-NET, highlighting links between genotype, phenotype and environment.