- 1(current)
Q. No.A transgenic tobacco plant was created to make it resistant to:
| 1. | a nematode, Meloidogyne incognita. |
| 2. | a nematode, Caenorhabditis elegans. |
| 3. | a trematode, Clonorchis sinensis. |
| 4. | a cestode, Taenia sloium. |
Subtopic: Â Interference RNA Tech |
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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 |
Subtopic: Â Interference RNA Tech |
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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 |
Subtopic: Â Interference RNA Tech |
 82%
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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 |
Subtopic: Â Interference RNA Tech |
 54%
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The source of complementary RNA for RNAi in a eukaryotic cell could be:
| 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 |
Subtopic: Â Interference RNA Tech |
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From NCERT
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A biological process in which RNA molecules inhibit gene expression or translation, by neutralizing targeted mRNA molecules is known as:
| 1. | Bioprospecting | 2. | Molecular pharming |
| 3. | RNA interference | 4. | Insertional mutagenesis |
Subtopic: Â Interference RNA Tech |
 94%
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RNA interference:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | involves silencing of a specific mRNA due to a complementary dsRNA molecule that binds to and prevents translation of the mRNA (silencing). |
| II: | has been used to create transgenic tobacco plants resistant to nematode Meloidogyne incognita |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Â Interference RNA Tech |
 92%
From NCERT
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