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Home Biotechnology Animal Breeding and Transgenic Animal Comments

  • Question
  • 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

  • Correct Answer
  • cytochalasin B 


  • Animal Breeding and Transgenic Animal problems


    Search Results


    • 1. 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
    • 2. 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
    • 3. Which of these established cell lines originate from a mouse embryo?

    • Options
    • A. 3T3
    • B. BHK
    • C. HeLa
    • D. BTK
    • Discuss
    • 4. Transgenic goats produce a variant of human tissue type plasminogen activator protein in

    • Options
    • A. blood
    • B. urine
    • C. milk
    • D. muscles
    • Discuss
    • 5. 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
    • 6. 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
    • 7. 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
    • 8. Karyoplast is

    • Options
    • A. cells devoid of cell wall
    • B. nuclei
    • C. nuclei with only some residual plasma membrane
    • D. cell with nucleus
    • Discuss
    • 9. DNA into fish is injected into

    • Options
    • A. pronuclei
    • B. cytoplasm
    • C. both (a) and (b)
    • D. none of these
    • Discuss
    • 10. 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


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