Q. No.Choose the correct option regarding Retrovirus:
| 1. | An RNA virus that synthesises DNA during infection |
| 2. | A DNA virus that synthesises RNA during infection |
| 3. | A ssDNA virus |
| 4. | A dsRNA virus |
A direct target for gene therapy would include all the following cells except:
| 1. | erythrocytes | 2. | muscle fibers |
| 3. | hepatocytes | 4. | vascular endothelium |
“Flavr Savr” is the name of the first genetically modified:
1. food approved for human use
2. salmon fish
3. herbicide-resistant plant
4. bacterium capable of remediation in oil spills
Match each item in Column I with one item in Column II and chose your answer from the codes given below.
|
Column I |
Column II |
|
I. RNAi II. Ribozyme III. PCR IV. Monoclonal antibodies |
1. Fire and Mello 2. Thomas Cech 3. Kyle Mullis 4. Millstein and Kohler |
Codes:
| I | II | III | IV | |
| 1. | 1 | 2 | 3 | 4 |
| 2. | 2 | 1 | 4 | 3 |
| 3. | 2 | 1 | 3 | 4 |
| 4. | 1 | 2 | 4 | 3 |
One possible use of transgenic plants is in the production of human proteins, such as vaccines. Which of the following is a possible hindrance that must be overcome?
| 1. | prevention of transmission of plant allergens to the vaccine recipients |
| 2. | prevention of vaccine-containing plants being consumed by insects |
| 3. | use of plant cells to translate non-plant derived mRNA |
| 4. | inability of the human digestive system to accept plant-derived protein |
At present, genetic modification has been able to bring about all the following in crops except:
1. Tolerance to abiotic stresses
2. Enhanced nutritional value
3. Capability to fix atmospheric nitrogen
4. Reduced reliance on chemical pesticides
Recombinant therapeutic [used for treatment] products are available for all the following disorders except:
| 1. | Hemophilia A | 2. | Pituitary dwarfism |
| 3. | Diabetes insipidus | 4. | Anemia due to renal failure |
Genetic engineering of nitrogen fixation is made difficult by the fact that it :
1. is a complex process involving many enzymes
2. is a process that is partly anaerobic
3. involves about 15 genes (the Nif Genes)
4. All of these
The use of transgenic animals, to produce relatively large quantities of rare proteins for use in medicine, is sometimes called:
| 1. | therapeutics | 2. | pharming |
| 3. | molecular treatment | 4. | biochemistry |
Match each item in Column I with one in Column II and select the answer from the codes given below:
|
COLUMN I |
COLUMN II |
||
|
A |
First genetically modified crop |
a |
Antibiotic-resistant tobacco plant |
|
B |
First genetically modified food |
b |
Flavr Savr |
|
C |
First genetically modified animal approved for food use |
c |
AquAdvantage Salmon |
|
D |
First genetically modified animal to be commercialized |
d |
GloFish |
Codes :
| A | B | C | D | |
| 1. | a | b | c | d |
| 2. | a | b | d | c |
| 3. | b | a | c | d |
| 4. | b | a | d | c |
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