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- Question
Two genes from a bacterium (Alcaligenes eutrophus) and a cotton gene produce
Options- A. a plastic
- B. a vaccine against the bacterium
- C. a pharmaceutical product
- D. herbicide resistance
- Correct Answer
- a plastic
- 1. Resistance to sulphonyl urea compounds in transgenic tobacco plant has been developed by the transfer of
Options- A. gene for EPSPS (5-enol-pyruvyl shikimat 3 phosphate synthase)
- B. gene for ALS (acetolactate synthase)
- C. gene for GS (glutamine synthase)
- D. any of the above Discuss
- 2. Which of the following statements is true regarding genomics?
Options- A. Plant genomics lags behind similar efforts in animals and microorganisms
- B. Researchers can make use of genomic information even if the entire genome of an organism is not known
- C. Researchers are busy in trying to determine the genome of the potato plant
- D. All of the above Discuss
- 3. Transgenic plants with increased tolerance to aluminum have been produced by making plants that
Options- A. secrete phytosiderophores into the soil
- B. make more metal-binding peptides like phytochelatins
- C. bind aluminum to the cell wall
- D. secrete citrate into the soil Discuss
- 4. Which of the following gene is transferred to plants that detoxify the herbicide atrazine?
Options- A. Nitrilase
- B. Glutathione S-transferase (GST)
- C. Phosphinothrium acetyl transferase
- D. All of these Discuss
- 5. Which of the agricultural challenges below cannot be solved with transgenic techniques?
Options- A. Crops are damaged by frost
- B. Crops are killed by a virus
- C. Public concern about safety of synthetic pesticides
- D. Public preference for organic vegetables Discuss
- 6. Low temperatures induce the expression of many cold-induced genes. Transgenic plants with improved cold tolerance have been produced by
Options- 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 Discuss
- 7. Which of the following compounds has been produced in transgenic plants to improve tolerance to salt stress and water deficit?
Options- A. Sucrose
- B. Mannitol
- C. Nicotine
- D. Octopine Discuss
- 8. Which of the following has been widely used to provide resistance against plant viruses?
Options- A. Virus resistance genes from bacteria
- B. Expression of virus coat protein genes in transgenic plants
- C. Expression of anti-virus genes in vectors that transmit viruses
- D. Expression of ribonuclease (RNase) genes in host plants Discuss
- 9. Cross protection against viruses in transgenic plants can be obtained by
Options- A. inoculating the susceptible strain of a crop with a mild strain of a virus that helps in developing resistance against more virulent strain
- B. inoculating the susceptible strain with the coat proteins of virulent strain
- C. inoculating the susceptible strain with genes of nucleocapsid
- D. any of the above Discuss
- 10. Reducing the expression of pectin methylesterase (PME) has resulted in
Options- A. plants with resistance to bacteria and fungi
- B. tomato juice that has higher viscosity
- C. tomato fruit that last longer before they become rotten
- D. tomato fruit that will not ripen Discuss
Transgenic Plant problems
Search Results
Correct Answer: gene for ALS (acetolactate synthase)
Correct Answer: All of the above
Correct Answer: secrete citrate into the soil
Correct Answer: Glutathione S-transferase (GST)
Correct Answer: Public preference for organic vegetables
Correct Answer: expressing the protein that activates expression of these genes all the time in plants
Correct Answer: Mannitol
Correct Answer: Expression of virus coat protein genes in transgenic plants
Correct Answer: inoculating the susceptible strain of a crop with a mild strain of a virus that helps in developing resistance against more virulent strain
Correct Answer: tomato juice that has higher viscosity
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