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Home Biotechnology Antibiotics See What Others Are Saying!
  • Question
  • At normal pH, penicillin remains in


  • Options
  • A. aqueous phase
  • B. solvent phase
  • C. both (a) and (b)
  • D. precipitates

  • Correct Answer
  • aqueous phase 


  • More questions

    • 1. ? ZAP vector is an example of

    • Options
    • A. phage
    • B. phagemid
    • C. cosmid
    • D. plasmid
    • Discuss
    • 2. In koji 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
    • 3. Which of the following abnormality, resulted from the inheritance of an unbalanced complement of chromosomes can be diagnosed through karotyping?

    • Options
    • A. Down's syndrome
    • B. Turner's syndrome
    • C. Klinefelter's syndrome
    • D. all of these
    • Discuss
    • 4. Incase of inversion when the inverted segment of chromosome includes centromere, it is known as

    • Options
    • A. paracentric inversion
    • B. double inversion
    • C. inverted inversion
    • D. pericentric inversion
    • Discuss
    • 5. What are the fermentation conditions for the ethanol production?

    • Options
    • A. pH 6; temperature 35°C
    • B. pH 5; temperature 35°C
    • C. pH 6; temperature 30°C
    • D. pH 5; temperature 30°C
    • Discuss
    • 6. An example of mosaic antigen is

    • Options
    • A. virus
    • B. bacteria
    • C. a hapten
    • D. protein
    • Discuss
    • 7. Somaclonal variation method refers to

    • Options
    • A. heritable changes
    • B. genetic isolation
    • C. small number of species having limited commercial potential
    • D. large number of plant cells
    • Discuss
    • 8. Which of the following metabolites are implicated in stress tolerance?

    • Options
    • A. Proline
    • B. Betaines
    • C. Both (a) and (b)
    • D. Citrate
    • Discuss
    • 9. Which phase of mitosis is associated with separation of chromatids?

    • Options
    • A. Prophase
    • B. Metaphase
    • C. Anaphase
    • D. Telophase
    • Discuss
    • 10. What is the pH of the medium when molasses is used as substrate for the production of citric acid?

    • Options
    • A. 3
    • B. 4
    • C. 5
    • D. 6
    • Discuss


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