Biotechnology - Transgenic Plant
Exercise :: Transgenic Plant - Section 1
- Transgenic Plant - Section 1
| 16. |
Transgenic plants |
| A. |
contain foreign genes in their cells | | B. |
are used to produce human antibodies | | C. |
both (a) and (b) | | D. |
are plants that differ in geographical locations |
Answer: Option C
Explanation:
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| 17. |
Low temperatures induce the expression of many cold-induced genes. Transgenic plants with improved cold tolerance have been produced by |
| A. |
expressing the protein that activates expression of these genes all the time in plants | | B. |
cooling plants using the Peltier effect | | C. |
expressing a gene for production of antifreeze (ethylene glycol) in plants | | D. |
increasing evaporative cooling from leaf surfaces |
Answer: Option A
Explanation:
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| 18. |
Nitrilase is encoded by |
| A. |
gene bxn in Klebsiella pneumoniae | | B. |
bar gene in Streptomyces spp | | C. |
both (a) and (b) | | D. |
none of these |
Answer: Option A
Explanation:
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| 19. |
If the goal were to create a plant resistant to an insecticide, which cell-based plant technology would be most effective? |
| A. |
Clonal propagation | | B. |
Cybridization | | C. |
Protoplast fusion | | D. |
Mutant selection |
Answer: Option D
Explanation:
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| 20. |
What are the various disadvantages of cross protection? |
| A. |
Possibility of mutations in inducing mild virus strain | | B. |
Possibility of synergism between inducing virus and other unrelated virus | | C. |
Possibility of unnecessary spread of mild virus | | D. |
All of the above |
Answer: Option D
Explanation:
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