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Home Biotechnology Vinegar and Citric Acid See What Others Are Saying!
  • Question
  • 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)

  • Correct Answer
  • Fungal mycelium grows through out the solution in a deep tank 


  • More questions

    • 1. Ales are the beer in which fermentation is carried out using

    • Options
    • A. top yeast
    • B. bottom yeast
    • C. either of the above
    • D. middle yeast
    • Discuss
    • 2. Superovulation is primarily the result of

    • Options
    • A. decreased atresia in medium and large follicles (>1.7 mm)
    • B. increased atresia in medium and large follicles (>1.7 mm)
    • C. increased atresia in the large follicles (<1.7 mm)
    • D. decreased atresia in small follicles (<1.7 mm)
    • Discuss
    • 3. Superovulation is an

    • Options
    • A. increased ovulatory response by external hormonal therapy
    • B. decreased ovulatory response by external hormonal therapy
    • C. decreased ovulatory response by internal hormonal therapy
    • D. increased ovulatory response by internal hormonal therapy
    • Discuss
    • 4. ACC demainase gene is responsible for

    • Options
    • A. synthesis for ethylene
    • B. degradation of ACC an immediate precursor to ethylene
    • C. both (a) and (b)
    • D. synthesis of polygalactouranase
    • Discuss
    • 5. Which of the following is not true about the helper plasmids?

    • Options
    • A. These can replicate in Agrobacterium
    • B. These help in the mediating conjugation of intermediate vectors
    • C. These can't replicate in Agrobacterium
    • D. All of the above
    • Discuss
    • 6. Which of the following transfers a set of genes encoded in a region called T-DNA of the Ti-plasmid into cells at wound positions?

    • Options
    • A. A. tumefaciens
    • B. L. peruvianum
    • C. L. birsutum
    • D. A. sterilis
    • Discuss
    • 7. What structure forms as a network of protein cables during cell division?

    • Options
    • A. Spindle
    • B. Aster
    • C. Kinetochore
    • D. Chromatid
    • Discuss
    • 8. Penicillin is produced by

    • Options
    • A. aerobic fermentation
    • B. anaerobic fermentation
    • C. aerobic fermentation followed by anaerobic fermentation
    • D. anaerobic fermentation followed by aerobic fermentation
    • Discuss
    • 9. In liquid surface culture 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
    • 10. Plants derived sexually from the same plant are____ while those derived from somatic tissue from the same plant are____.

    • Options
    • A. identical, different
    • B. different, also different
    • C. different, identical
    • D. plants cannot be derived from somatic tissue
    • Discuss


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