List-I | List-II | ||
(A) | Gene therapy | (I) | Separation of DNA fragments |
(B) | RNA interference | (II) | Diagnostic test for AIDS |
(C) | ELISA | (III) | Cellular defense |
(D) | Gel Electrophoresis | (IV) | Allows correction of a gene defect |
Options: | (A) | (B) | (C) | (D) |
1. | IV | I | II | III |
2. | IV | II | III | I |
3. | IV | III | II | I |
4. | IV | III | I | II |
ds RNA can be used during which one of the following ?
1. Gene sequencing
2. Polymerase Chain Reaction
3. Gene silencing
4. Autoradiography
Given below are two statements: one is labeled as Assertion (A) and the other is labeled as Reason (R).
Assertion (A): | The nematode cannot survive in a transgenic host which expresses specific interfering RNA. |
Reason (R): | Nematode-specific gene introduced in the host produces both sense and antisense complementary RNA which initiate RNA interference in the host cell. |
In light of the above statement, choose the most appropriate answer from the option given below :
1. | (A) is correct but (R) is not correct. |
2. | (A) is not correct but (R) is correct. |
3. | Both (A) and (R) are correct and (R) is the correct explanation of (A). |
4. | Both (A) and (R) are correct but (R) is not the correct explanation of (A). |
RNA interference is used for which of the following purposes in the field of biotechnology?
1. | to develop a plant tolerant to abiotic stresses |
2. | to develop a pest-resistant plant against infestation by nematode |
3. | to enhance the mineral usage by the plant |
4. | to reduce post-harvest losses |
In RNAi, the genes are silenced using:
1. | dsRNA | 2. | ssDNA |
3. | ssRNA | 4. | dsDNA |
1. | Leaf | 2. | Stem |
3. | Root | 4. | Flower |
Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produced (in the host cells):
1. A particular hormone
2. An antifeedant
3. A toxic protein
4. Both sense and anti-sense RNA
1. fungi
2. viruses
3. insects
4. nematodes
Which one of the following is commonly used in the transfer of foreign DNA into crop plants?
1. Trichoderma harzianum
2. Meloidogyne incognita
3. Agro bacterium tumefaciens
4. Penicillium expansum
1. | A cell displaying a foreign antigen used for the synthesis of antigens. |
2. | Production of somaclonal variants in tissue cultures. |
3. | When a piece of RNA that is complementary in sequence is used to stop the expression of a specific gene |
4. | RNpolymerase-producingng DNA |