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Home Biotechnology Animal Breeding and Transgenic Animal Comments

  • Question
  • Which of these established cell lines originate from a mouse embryo?


  • Options
  • A. 3T3
  • B. BHK
  • C. HeLa
  • D. BTK

  • Correct Answer
  • 3T3 


  • Animal Breeding and Transgenic Animal problems


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    • 1. Transgenic goats produce a variant of human tissue type plasminogen activator protein in

    • Options
    • A. blood
    • B. urine
    • C. milk
    • D. muscles
    • 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. Fusion of karyoplast with the enucleated cell is achieved in presence of

    • Options
    • A. cytochalasin B
    • B. polyethylene glycol
    • C. both (a) and (b)
    • D. alcohol
    • Discuss
    • 4. Transgenic goats have been used to produce which of the following protein that is used for dissolving blood clots?

    • Options
    • A. Amyloid precursor protein
    • B. ?1-anti trypsin (AAT)
    • C. Casein
    • D. A variant of human tissue-type plasminogen activator
    • Discuss
    • 5. Production of transgenic animals require transfections of

    • Options
    • A. eggs or embryos
    • B. stem cells
    • C. red blood cells
    • D. all of these
    • Discuss
    • 6. When the cells are enucleated and centrifuged, nuclei

    • Options
    • A. detach from cell and settle at the bottom
    • B. detach from cell and remain in the supernatant
    • C. nuclei remain attached to the cell
    • D. none of the above
    • Discuss
    • 7. Which of the following statements is false?

    • Options
    • A. Continuous variation produces a spread of variation within a population
    • B. Discontinuous variation is the result of genetics alone
    • C. Blood group is an example of discontinuous variation
    • D. Discontinuous variation is influenced by the environment
    • Discuss
    • 8. Enucleation of the cells can be achieved by treating the cells with

    • Options
    • A. polyethylene glycol
    • B. cytochalasin B
    • C. both (a) and (b)
    • D. alcohol
    • Discuss
    • 9. 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
    • 10. 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


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