Q. Virulent strains of Agrobacterium contain large Ti-plasmids, which are responsible for the DNA transfer and subsequent disease symptoms. It has been shown that Ti-plasmids contain

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Q. The direct repeats flanking the T-DNA of Agrobacterium tume-faciens are known as

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Q. Which of the following are used as selection marker for the cells transformed with Agrobacterium?

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Q. Vir genes required for the T-DNA transfer and processing are located

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Q. Plant transformation vectors based on Agrobacterium can generally be divided into

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Q. Opines that are present in crown gall tumour include

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Q. Intermediate vectors containing T-DNA are conjugation deficient. Thus conjugation is mediated in presence of which of the following plasmid?

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Q. Which of the following is true about T DNA?

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Q. Which of the following is not true about the direct repeats flanking T-DNA?

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Q. The left segment of octopine T-DNA (TL) is necessary for

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Q. Microprojectile method of gene transfer in plants involves delivery of DNA

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Q. Which of the following genes are constitutively expressed and control the plant induced activation of other vir genes?

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Q. Integrated octopine T DNA occurs as

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Q. Liposomes mediated gene transfer in plants involves

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Q. Which of the following plant signal molecules regulate the expression of vir B, C, D and E in case of tobacco?

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Q. In a plant tumour cell

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Q. Co-integrating transformation vectors must include a region of homology in

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Q. Crown gall tissue

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Q. Integrated nopaline T-DNA occurs as

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Q. Opines are

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