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Evolution — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYEvolution3 Marks
Question
  1. State Oparin-Haldane’s hypothesis.
  2. How does S.L. Miller’s experiment supports it?
✓

Answer

  1. Life could have come from pre-existing non-living organic molecules, and that formation of life was preceded by chemical evolution.
  2. (S. L. Miller created condition similar to prehistoric earth in the laboratory) He created electric discharge in a closed flask, containing CH4 H2 NH3 and water vapour, at 8000C observed formation of amino acid (organic molecules)

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