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Home ‣ Biotechnology ‣ Vinegar and Citric Acid See What Others Are Saying!
- Question
Ethanol is oxidized to acetic acid aerobically using
Options- A. Acetobacter
- B. Gluconobacter
- C. both (a) and (b)
- D. Lactobacillus
- Correct Answer
- both (a) and (b)
- 1. In animal cell culture, particularly mammalian cell culture, transformation means
Options- A. uptake of new genetic material
- B. phenotypic modifications of cells in culture
- C. both (a) and (b)
- D. release of genetic information Discuss
- 2. Multiple ovulation and embryo transfer (MOET)
Options- A. can increase the rate of progress in dairy cattle
- B. allows progeny testing of males
- C. allows progeny testing of females
- D. all of the above Discuss
- 3. 5-fluoro orotic acid inhibits the growth if one of the following marker is present in the yeast. That is
Options- A. His 3
- B. Lys 2
- C. Ura 3
- D. Trp 1 Discuss
- 4. Which of the following statement is correct?
Options- A. Variation is caused by genes
- B. Variation is caused by the environment
- C. Variation can be caused by both genes and the environment
- D. None of the above Discuss
- 5. How is air supply to the fermentor sterilized?
Options- A. By heat filtration
- B. Filtration through fibrous material
- C. Filtration through granular material
- D. All of the above Discuss
- 6. A nuclear envelope forms around each set of sister chromatids in
Options- A. anaphase
- B. metaphase
- C. prophase
- D. telophase Discuss
- 7. Which of the following is not true about synthetic seeds?
Options- A. Can be stored for a year without the loss of valuables
- B. Easy to handle
- C. Can be directly sown in the soil like natural seeds
- D. Need hardening in the green house Discuss
- 8. To prevent the accumulation of lactate
Options- A. low glutamine concentration is required
- B. high glutamine concentration is required
- C. low glucose concentration is required
- D. high glucose concentration is required Discuss
- 9. How does CO2 help in the cell metabolism during cell culture?
Options- A. It participates in the de novo synthesis of purines and pyrimidines
- B. Helps in the cells respiration
- C. For monitoring pH of the culture
- D. All of the above Discuss
- 10. What is the effect of excess accumulation of metabolite products (lactate and ammonium) on cells?
Options- A. They act as growth promoters
- B. They act as growth inhibitors
- C. Have no effect on cells
- D. Lactate helps in the growth while ammonium inhibits the growth Discuss
More questions
Correct Answer: phenotypic modifications of cells in culture
Correct Answer: all of the above
Correct Answer: Ura 3
Correct Answer: Variation is caused by genes
Correct Answer: All of the above
Correct Answer: telophase
Correct Answer: Need hardening in the green house
Correct Answer: low glucose concentration is required
Correct Answer: It participates in the de novo synthesis of purines and pyrimidines
Correct Answer: Lactate helps in the growth while ammonium inhibits the growth
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