Miller Ureys Results Have been repeated using same or similar ingredients

Miller ureys results have been repeated using same or

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Miller & Urey’s Results Have been repeated using same or similar ingredients, different recipes for the atmosphere and they also produced organic compounds Still ?s about amounts of methane, ammonia (was there really enough to make it a reducing environment?) Some repeated experiment in non- reducing, non-oxidizing conditions & still produce organic compounds
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Miller-Urey Experiment demonstrates: 1. Abiotic synthesis of organic molecules is possible under various assumptions about the composition of Earth’s early atmosphere 2. Meterorites may also have been source of minerals and organic molecules Contain amino acids, lipids, simple sugars, uracil
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Murchison Meteorite
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Murchison Meteorite Fell to Earth in so named town in Australia in 1969 large (100 kg) and was quickly retrieved 2010 article published in Scientific American: results of mass spectrometry (separating compounds based on charge & size) have revealed at least 14,000 unique molecules
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Abiotic Synthesis of Macromolecules 2009 study showed the abiotic synthesis of RNA monomers can occur spontaneously from simpler precursor molecules Drip solutions with amino acids (aa) or RNA nucleotides onto hot sand, rock, or clay polymers of aa & RNA (w/out using enzymes or ribosomes)
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Protocells (Protobionts)
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  • Fall '16
  • idk
  • Abiogenesis, Miller & Urey

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