Q. No.Which of these is an accurate description of gene therapy?
1.
A form of site directed mutagenesis.
2.
Introduction of cloned genes into living cells to cure disease.
3.
Cloning of a disease gene in order to understand the disease.
4.
All of these.
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At present transgenic animals cannot be used for:
| 1. | Harvesting biological products |
| 2. | Testing vaccine safety |
| 3. | Study of human diseases |
| 4. | Xenotransplantation |
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The first drug produced using recombinant DNA technology is used to treat:
| 1. | haemophilia | 2. | dwarfism |
| 3. | immunodeficiency | 4. | diabetes |
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The two polypeptide chains of insulin protein are linked together by:
| 1. | disulfide bonds | 2. | hydrogen bonds |
| 3. | covalent bonds | 4. | ionic bonds |
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The viruses generally used for gene therapy are:
| 1. | ds DNA virus | 2. | ss DNA virus |
| 3. | Reovirus | 4. | Reterovirus |
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Bacillus thuringiensis (Bt) strains have been used to design novel:
| 1. | Biofertilizers | 2. | Biometallurgic techniques |
| 3. | Biomineralization processes | 4. | Bioinsecticidal plants |
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Bt cotton is not:
| 1. | A GM plant |
| 2. | Insect resistant |
| 3. | A bacterial gene expressing system |
| 4. | Resistant to all pesticides |
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| 1. | A part of mature insulin molecule |
| 2. | Responsible for formation of disulphide bridges |
| 3. | Removed during maturation of pro-insulin to insulin |
| 4. | Responsible for its biological activity |
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A probe which is a molecule used to locate homologous sequences in a mixture of DNA or RNA molecules could be:
| 1. | A ssRNA | 2. | A ssDNA |
| 3. | Either RNA or DNA | 4. | Can be ssDNA but not ssRNA |
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A protoxin is:
| 1. | A primitive toxin | 2. | A denatured toxin |
| 3. | Toxin produced by protozoa | 4. | Inactive toxin |
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