NEET AIPMT SOLVED PAPER SCREENING 2004

  • question_answer
    The most likely reason for the development of resistance against pesticides in insect damaginga crop is :

    A) random mutations                                                         

    B) genetic recombination

    C)  directed mutations                                                       

    D)  acquired heritable changes

    Correct Answer: A

    Solution :

    The environmental stress (as pesticides) does not cause or direct changes in genome, instead, it simply selects rather persisting mutations which result in phenotypes that are better adapted to the new environment (e.g., certain pesticides).


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