Q. No.The introduction of t-DNA into plants involves:
1. Altering the pH of the soil, then heat shocking the plants
2. Exposing the plants to cold for a brief period
3. Allowing the plant roots to stand in water
4. Infection of the plant by Agrobacterium tumefaciens
1. Altering the pH of the soil, then heat shocking the plants
2. Exposing the plants to cold for a brief period
3. Allowing the plant roots to stand in water
4. Infection of the plant by Agrobacterium tumefaciens
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Golden rice is a genetically modified crop plant where the incorporated gene is meant for biosynthesis of :
1. Vitamin C
2. Omega 3
3. Vitamin A
4. Vitamin B
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Which kind of therapy was given in 1990 to a four-year-old girl with adenosine deaminase (ADA) deficiency?
1. Radiation therapy
2. Gene therapy
3. Chemotherapy
4. Immunotherapy
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The process of separation and purification of expressed protein before marketing is called:
1. Upstream processing
2. Downstream processing
3. Bioprocessing
4. Postproduction processing
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The DNA fragments separated on an agarose gel can be visualised after staining with
1. Bromophenol blue
2. Acetocarmine
3. Aniline blue
4. Ethidium bromide
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Why does Bt toxin not kill Bacillus thuringiensis?
| 1. | The bacillus keeps proteins in inclusions |
| 2. | The toxin exists in the bacillus as a pro-toxin |
| 3. | The bacillus protects its genetic material by methylation |
| 4. | The bacillus has a tough cell wall of peptidoglycan |
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1. cryIAc
2. cryIIAb
3. cryIAb
4. cryIAd
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RNAi, as a mechanism of cellular defense, takes place in:
| 1. | All bacteria | 2. | All unicellular organisms |
| 3. | All plants only | 4. | All eukaryotic organisms |
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How were nematode-specific genes introduced in tobacco plants?
1. Using page DNA
2. Using a retrovirus
3. By gene gun
4. Using Agrobacterium tumefaciens
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The first recombinant therapeutic product approved for human use was:
| 1. | Humulin | 2. | hGH |
| 3. | Factor VIII clotting factor | 4. | Erythropoietin |
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