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      Question

      The process of 'Hardening' in tissue culture

      involves:
      A Freezing plants Correct Answer Incorrect Answer
      B Acclimatization to outdoors Correct Answer Incorrect Answer
      C Adding more sugar Correct Answer Incorrect Answer
      D Treating with fungicides only Correct Answer Incorrect Answer

      Solution

      Lab-grown plants have thin cuticles and non-functional stomata due to high humidity. Hardening gradually exposes them to lower humidity and higher light to help them survive the transition to the field.

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