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  • Model of a DNA double helix according to the correct dimensions of the natural molecule.
  • Model of a DNA double helix according to the correct dimensions of the natural molecule.
  • Model of a DNA double helix according to the correct dimensions of the natural molecule.
  • DNA double helix and sequencing output
  • Methods of torture in South America: people in field stocks before large crucifixes. Wood engraving by Riou.