Category: CSIR NET Life Science Previous Year Questions and Solution on applied biology

Which one of the following statements is correct? (1) None of the virulence genes of Agrobacterium tumefaciens are expressed constitutively. (2) Integration of T-DNA with the nuclear genome of plant […]

Agrobacterium tumefaciens is frequently used as a vector to create transgenic plants. Under laboratory conditions Agrobacterium – mediated plant transformation does not require (1) host plant genes (2) bacterial type […]

The T-DNA region of the Ti plasmid of Agrobacterium tumefaciens harbors two genes: X and Y. Mutation of gene ‘X’ produces a rooty tumour while mutation of gene ‘Y’ produces […]

A set of virulence genes (vir genes), located in the Agrobacterium Ti-plasmid, is activated by (1) octopine                         (2) nopaline […]

Treatment of acetosyringone is given during transfer of transgene using Agrobacterium as vector. The rationale behind this is that acetosyringone (1) Helps in anchorage of bacteria to plant cell wall […]

Which microbe has been used against insect plant pathogens? (1) Agrobacterium tumefaciens (2) Agrobacterium rhizogenes (3) Bacillus thuringenesis (4) Fusarium nudum Why Bacillus thuringiensis is correct Bacillus thuringiensis (Bt) is […]

Which of the following organism have been extensively used in generation of transgenic plants? (1) Agrobacterium tumfaciens              (2) Bacilus thuringensis (3) Baculo viruses    […]

Arabidopsis thaliana seeds were planted on Murashige Skoog (MS) plates with or without a hormone added to the medium. Seeds were found to germinate late in the hormone containing MS […]

Protoplast fusion is used in plant tissue culture for various applications. In protoplast fusion: A. naked plant cells are used. B. transfer of organelles is not possible. C. partial genome […]