1.

    Which combination of technologies is MOST likely to be employed in developing a 'Golden Rice' variety with enhanced iron bioavailability?

    A

    Phytoene synthase gene transfer, Lycopene beta-cyclase gene transfer

    B

    Ferritin gene transfer, Phytase gene transfer

    C

    Cry gene transfer, Proteinase inhibitor gene transfer

    D

    Viral coat protein gene transfer, Chitinase gene transfer

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    9.

    Which of the following is false for Bt transgenic plant?

    A

    Bt transgenic plants are designed to be insect-resistant.

    B

    Bt transgenic plants reduce the need for chemical insecticides.

    C

    Bt transgenic plants are harmful to all insects.

    D

    Bt toxin expressed in the plant is derived from a bacterium.

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    10.

    Select an incorrect statement for Bt Cotton

    A

    B.thuringiensis forms protein crystals during all phases of growth

    B

    Bt toxin proteins exist as inactive protoxins but once an insect ingest the inactive toxin, it is converted into an active form of toxin

    C

    The activated toxin binds to the surface of midgut epithelial cells of insects and create pores

    D

    Most Bt toxins are insect-group specific

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