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  3. 9th Class
  4. Science
  5. Improvement in food resources

9th Class Science Improvement in food resources Question Bank Improvement In Food Resources

  • question_answer
    In which of the following techniques change in number of chromosomes takes place for obtaining desirable change in the offspring?

    A) Hybridization                 

    B) Polyploidy

    C) Mixed cropping

    D)        All the above

    E) None of these

    Correct Answer: B

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