An experiment was performed to introduce a transgenic trait in a crop plant by Agrobacterium – mediated transformation using a transgene construct in which the transgene was expressed using the […]
Category: CSIR NET Life Science Previous Year Questions and Solution on applied biology
CSIR NET Life Science Previous Year Questions and Solution on applied biology
CSIR NET Life Science Previous Year Questions and Solution on applied biology
Why do independent transgenic events show different expression levels?
Given below is a figure representing expression levels of transgenic protein in ten independent transgenic plants generated using the same transformation vector by Agrobacterium-mediated transformation. Given below are a few […]
CSIR NET Life Science Previous Year Questions and Solution on applied biology
Why do independent transgenic plants show variable transgene expression?
Agrobacterium mediated transformation was used to generate transgenic plants using a construct with a selection marker gene “X” and a passenger gene “Y”. Expression levels of “Y” protein in eight […]
CSIR NET Life Science Previous Year Questions and Solution on applied biology
Why some overexpression lines show low expression of gene X in transgenic rice
For the generation of transgenic plant in crop improvement, one important regulatory gene ‘X’ was overexpressed in a crop plant. Out of 30 transgenic rice plants generated, 22 showed high […]
CSIR NET Life Science Previous Year Questions and Solution on applied biology
Which gene was engineered in the Flavr Savr tomato?
Which of the following genes was engineered in the “Flavr Savr” transgenic tomato variety? (1) 1-Amino cyclopropane-1-carboxylic acid synthase. (2) 1-Amino cyclopropane-1-carboxylic acid oxidase. (3) Expansin (4) Polygalacturonase. The correct […]
CSIR NET Life Science Previous Year Questions and Solution on applied biology
Approved transgenic crop for commercial cultivation in India
Which of the following transgenic crops have been approved for commercial cultivation in India? (1) Cotton (2) Brinjal (3) Cotton and Brinjal (4) Cotton, Brassica, Brinjal The correct answer is […]
CSIR NET Life Science Previous Year Questions and Solution on applied biology
Neomycin phosphotransferase (NPT II) as a selectable marker in plant transformation
Neomycin phospho-transferase gene, frequently used as a selection marker during plant transformation, inactivates which one of the following antibiotics? (1) Hygromycin (2) […]
CSIR NET Life Science Previous Year Questions and Solution on applied biology
Which herbicide-resistance genes work by preventing herbicide binding to the target enzyme?
The following genes have been genetically engineered to develop herbicide resistance in plants: A. Resistance to glyphosate using the 5-enolpyruyl shikimate-3-phosphate synthase gene B. Bialaphos resistance using the bar gene […]
CSIR NET Life Science Previous Year Questions and Solution on applied biology
Which Bt genes are used in Bollgard II cotton?
Which genes have been introduced in Bollgard II cotton to get resistance against cotton bollworm, tobacco bollworm and pink bollworm? (1) cry 1Ab + cry 1Ac […]
CSIR NET Life Science Previous Year Questions and Solution on applied biology
Key features and mode of action of glyphosate herbicide
Which of the following features is NOT shown by glyphosate, a broad spectrum herbicide? (1) Little residual soil activity (2) Ready translocation in phloem (3) Inhibition of a chloroplast enzyme […]
