- 1(current)
Q. No.| 1. | a nematode, Meloidogyne incognita. |
| 2. | a nematode, Caenorhabditis elegans. |
| 3. | a trematode, Clonorchis sinensis. |
| 4. | a cestode, Taenia sloium. |
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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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Antisense technology:
| 1. | selectively blocks the expression of a gene. |
| 2. | combines genetic material from different species. |
| 3. | combines organelles and cells. |
| 4. | alters or transfers cells. |
Identify the incorrect statement regarding the use of RNAi for creating transgenic tobacco plants resistant to Meloidogyne incognita:
| 1. | Agrobacterium tumefaciens was used to transform the plant cells |
| 2. | Double-stranded RNA was introduced into the plant cells |
| 3. | Double-stranded RNA was formed in the plant cells that initiated RNAi |
| 4. | A specific mRNA of the nematode was silenced with the help of dsRNA |
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RNA interference involves silencing a specific mRNA by:
| 1. | interfering with its post transcriptional modification |
| 2. | not allowing the transport of mRNA from nucleus to cytoplasm |
| 3. | a dsRNA that binds to it and prevents its translation |
| 4. | post translational degradation of the protein |
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| I: | An infection by viruses having RNA genomes |
| II: | Mobile genetic elements that replicate via an RNA intermediate |
| III: | Integration of phage DNA into the main chromosomal DNA of a eukaryotic cell |
| 1. | Only I and II | 2. | Only I and III |
| 3. | Only II and III | 4. | I, II and III |
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Silencing of a gene could be achieved through the use of:
| 1. | RNAi only | 2. | antisense RNA only |
| 3. | both RNAi and antisense RNA | 4. | none of the above |
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- 1(current)
Q. No.
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