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Home Biotechnology Animal Breeding and Transgenic Animal Comments

  • Question
  • Chromosomes may be isolated from metaphase cells by


  • Options
  • A. hypertonic lysis
  • B. hypotonic lysis
  • C. either (a) or (b)
  • D. isotonic lysis

  • Correct Answer
  • hypotonic lysis 


  • Animal Breeding and Transgenic Animal problems


    Search Results


    • 1. Which part of a cell carries the information that is passed from one generation to the next?

    • Options
    • A. Cell
    • B. Nucleus
    • C. Cytoplasm
    • D. Chloroplast
    • Discuss
    • 2. Which of the following best describes artificial insemination?

    • Options
    • A. Transplanting an embryo into the uterus
    • B. Fertilization of an egg in a test tube
    • C. Selectively breeding healthy animals
    • D. Taking the sperm and placing it directly
    • Discuss
    • 3. Which of the following statements best describes a clone?

    • Options
    • A. An artificial life form
    • B. An offspring where all of the genetic material in every cell is identical to that of both parents
    • C. An offspring where all of the genetic material in every cell is identical to that of one of its parents
    • D. A type of sheep
    • Discuss
    • 4. In transgenic fish, the genes are introduced by

    • Options
    • A. microinjection in fish
    • B. viruses
    • C. transfer of whole nuclei
    • D. all of these
    • Discuss
    • 5. For the rapid genetic progress, embryo transfer (ET)

    • Options
    • A. will be as potent a tool as AI (artificial insemination)
    • B. will not be as potent a tool as AI (artificial insemination)
    • C. ET can't be used at all
    • D. will be a superior tool than AI
    • Discuss
    • 6. The nucleous of mature unfertilized ovum may be removed by

    • Options
    • A. irradiation
    • B. surgery
    • C. both (a) and (b)
    • D. neutralization and homogenization
    • Discuss
    • 7. Which of the following is the process of choosing parent organisms for the characteristics that is wanted in their offspring?

    • Options
    • A. Active selection
    • B. Reproductive selection
    • C. Selective breeding
    • D. Breeding selection
    • Discuss
    • 8. Transfection refers to which of the following?

    • Options
    • A. Synthesis of mRNA from DNA template
    • B. Synthesis of protein based on mRNA sequence
    • C. Introduction of foreign gene in to a cell
    • D. The process by which a cell become malignant
    • Discuss
    • 9. Which protein has been produced generating a transgenic sheep that is used for replacement therapy for individuals at risk from emphysema?

    • Options
    • A. Plasminogen activator (tPA)
    • B. ?-anti trypsin (AAT)
    • C. Casein
    • D. Amyloid precursor proteins
    • Discuss
    • 10. 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


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