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- Question
Neurospora is used as an experimental tool in
Options- A. ecology
- B. cytology
- C. genetics
- D. physiology
- Correct Answer
- genetics
- 1. Using bovine papilloma virus (BPV) derived vectors, permanent cell lines can be obtained carrying a recombinant DNA
Options- A. episomally only
- B. integrated only
- C. either episomally or integrated at high copy number
- D. either episomally or integrated at low copy number Discuss
- 2. During meiosis crossing over takes place at
Options- A. zygotene stage
- B. diplotene stage
- C. diakinesis stage
- D. pachytene stage Discuss
- 3. 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
- 4. The percentage of individual with a given genotype, which exhibits the associated phenotype, is defined as
Options- A. penetrance
- B. expressivity
- C. inheritance percent
- D. environmental influence Discuss
- 5. What are the various disadvantages of cross protection?
Options- 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 Discuss
- 6. In submerged process for the fermentation to produce citric acid,
Options- A. A. niger is used with solid substrate as sweet potato
- B. A. niger floats on the surface of solution
- C. Fungal mycelium grows through out the solution in a deep tank
- D. both (a) and (b) Discuss
- 7. Cellular totipotency is the property of
Options- A. plants
- B. animals
- C. bacteria
- D. all of these Discuss
- 8. At low glucose concentration, below 0.25 mmol/litre, large portions of glucose and glutamine is shunted via
Options- A. oxidative pathway
- B. anaerobic pathway
- C. both (a) and (b)
- D. none of these Discuss
- 9. Which substrate is used in the fermentation of citric acid?
Options- A. Beet molasses
- B. Sucrose
- C. Starch hydrolysate
- D. All of these Discuss
- 10. During the growth of animal cells in culture, it is noticed that the cells do not look very healthy. After an investigation, this is found that there is a lot of lactic acid in the culture fluid. What is probably wrong with this culture?
Options- A. Ethyl alcohol is being produced in excess
- B. The cells have too much oxygen
- C. Glycolysis is being inhibited
- D. The cells do not have enough oxygen Discuss
More questions
Correct Answer: either episomally or integrated at high copy number
Correct Answer: pachytene stage
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: penetrance
Correct Answer: All of the above
Correct Answer: Fungal mycelium grows through out the solution in a deep tank
Correct Answer: plants
Correct Answer: oxidative pathway
Correct Answer: All of these
Correct Answer: The cells do not have enough oxygen
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