2. Sample Papers
  3. SSC
  4. Ecology And Environment

SSC Ecology And Environment Sample Paper NCERT Sample Paper-4

  • question_answer
    Exposure of an organism to UV rays causes

    A)  Photodynamic action

    B)  Formation of thymidine

    C)  Splitting of H-bonds of DNA

    D)  Splitting of phosphodiester bonds

    Correct Answer: C

    Solution :

    [c] Hydrogen bonding plays an important role in determining the three-dimensional structures adopted by proteins and nucleic bases.


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