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Home Biotechnology Animal Breeding and Transgenic Animal Comments

  • Question
  • Which of the following is the word used to describe what happens when the nucleus of a sperm joins with the nucleus of an egg cell?


  • Options
  • A. Sex
  • B. Fertilisation
  • C. Intercourse
  • D. Reproduction

  • Correct Answer
  • Fertilisation 


  • Animal Breeding and Transgenic Animal problems


    Search Results


    • 1. When a fertilized egg cell develops into an embryo, the entropy of the living system

    • Options
    • A. decreases
    • B. increases
    • C. remains constant
    • D. none of these
    • Discuss
    • 2. DNA into fish is injected into

    • Options
    • A. pronuclei
    • B. cytoplasm
    • C. both (a) and (b)
    • D. none of these
    • Discuss
    • 3. Karyoplast is

    • Options
    • A. cells devoid of cell wall
    • B. nuclei
    • C. nuclei with only some residual plasma membrane
    • D. cell with nucleus
    • Discuss
    • 4. Which of these carries the thousands of genes needed to allow animal and plant cells to pass on inherited characteristics?

    • Options
    • A. Chromosomes
    • B. Chromatogram
    • C. Chromatography
    • D. Chromium
    • Discuss
    • 5. Which of the following gene have been introduced into the transgenic fish?

    • Options
    • A. Human or rat gene for growth hormone
    • B. Chicken gene for delta crystalline protein
    • C. E. coli gene for ?-galactosidase
    • D. All of the above
    • Discuss
    • 6. To maintain aseptic conditions during fermentation which of the following is needed?

    • Options
    • A. Sterilization of fermentor
    • B. Sterilization of air supply
    • C. Aeration and agitation
    • D. All of these
    • Discuss
    • 7. S cerevisiae start producing ethanol with in

    • Options
    • A. 10 h
    • B. 12 h
    • C. 15 h
    • D. 24 h
    • Discuss
    • 8. Which of the following is used to check vortex and to improve aeration efficiency in a fermentor?

    • Options
    • A. Impeller
    • B. Baffles
    • C. Sparger
    • D. All of these
    • Discuss
    • 9. As the fermentation for the ethanol production is over, the cells are separated to get the biomass of yeast cells that is used

    • Options
    • A. for next fermentation
    • B. as single cell protein for animal feed
    • C. as manure
    • D. all of the above
    • Discuss
    • 10. Which of the following is used for aeration in a fermentor?

    • Options
    • A. Impeller
    • B. Baffles
    • C. Sparger
    • D. All of these
    • Discuss


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