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Home Biotechnology Vectors Uses for Animal Cell Culture See What Others Are Saying!
  • Question
  • Cos cell line is


  • Options
  • A. cohesive end site of phage ?
  • B. derivative of permissive CV-1 monkey cell line
  • C. cohesive initial site of phage ?
  • D. derivative of non-permissive CV-1 monkey cell line

  • Correct Answer
  • derivative of permissive CV-1 monkey cell line 


  • More questions

    • 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


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