Punjab Medical Punjab - MET Solved Paper-2006

  • question_answer
    The protein toxin producing bacteria, which used to control biological pest is:

    A)  E. coli

    B)  Agrobacterium

    C)  Mycobacterium sp.

    D)  B. thuringiensis

    Correct Answer: D

    Solution :

    Bacillus thuringiensis bacterium carries a gene which codes for toxic crystals (Bt toxin proteins) that are produced during endospore formation. Bt toxin is active against larvae of more than 140 species of insects including cabbage worm and bag worm.


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