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In Agrobacterium mediated transformation, which one of the following approaches is more likely to generate transgenic plants with IMCOMPLETE transfer of the passenger gene? (1) Placement of selection marker gene […]

Which one of the following types of promoters would NOT be used within the T-DNA for expression of a negative selection marker gene for generation of transgenic plants by Agrobacterium-mediated […]

“In Agrobacterium-mediated transformation of a plant using a binary vector construct,” Complete the above statement with the correct option. (1) All transgenic plants generated would show similar levels of transgenic […]

Following are some statements about Agrobacterium — plant interactions (A) Agrobacterium transfers a part of its chromosome into plant cell. (B) Agrobacterium transfers a part of one of its plasmid […]

A transposon carrying a promoterless ß-galactosidase (lac Z) was used to create insertional mutation in the vir region of Ti-plasmid of Agrobacterium tumefaciens. All the mutants in which lac Z […]

Which of the following statement is NOT true during infection of plant cell by Agrobacterium? (1) The protein products of virulence genes Vir A and VirG perceives acetosyringone (2) The […]

To increase the shelf-life of tomato, which of the following genes should be silenced? (1) ACC synthase                     (2) EPSP synthase (3) […]

Agrobacterium Ti plasmid vectors are used to generate transgenic plants. The following are examples of vir gene encoded proteins that are important for transfer of T-DNA in to plants. A- […]

Match the following Vir proteins with their correct function during Agrobacterium mediated transfer of T- DNA to plant cells. (1) A-(i), B-(ii), C-(iii), D-(iv) (2) A-(iv). B-(i). C-(ii), D-(iii) (3) […]