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      Question

      An amino acid induced during moisture stress condition

      and also known as stress indicator is
      A Serine Correct Answer Incorrect Answer
      B Tryptophan Correct Answer Incorrect Answer
      C Glycine Correct Answer Incorrect Answer
      D Proline Correct Answer Incorrect Answer

      Solution

      Proline imparts stress tolerance  in plants by maintaining osmotic balance, stabilizing membranes thereby preventing electrolyte leakage, and bringing concentrations of reactive oxygen species within normal ranges, thus preventing oxidative burst in plants.

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