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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