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  3. 12th Class
  4. Biology
  5. Principle Of Inheritance And Variation

12th Class Biology Principle Of Inheritance And Variation Question Bank MCQs - Principles of Inheritance and Variation

  • question_answer
    Action of ultraviolet rays on DNA is :

    A) Induction of thymidine

    B) Deletion of base pair

    C) Addition of base pair

    D) Methylation of base pair

    Correct Answer: B

    Solution :

    Deletion of base pair


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