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MCQs

Total Questions : 86 | Page 7 of 9 pages
Question 61. . DNA microinjection into the egg has been used to produce which of the following transgenic animals?
  1.    Mice
  2.    Chicken
  3.    Pigs
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Question 62. . Which of the following is/are the method of transfection for making transgenic animals?
  1.    Transfer of whole nuclei
  2.    Transfer of whole individual chromosomes or fragment
  3.    Transfer of DNA
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 63. . For the rapid genetic progress, embryo transfer (ET)
  1.    will be as potent a tool as AI (artificial insemination)
  2.    will not be as potent a tool as AI (artificial insemination)
  3.    ET can't be used at all
  4.    will be a superior tool than AI
 Discuss Question
Answer: Option B. -> will not be as potent a tool as AI (artificial insemination)
Question 64. . Enucleation of the cells can be achieved by treating the cells with
  1.    polyethylene glycol
  2.    cytochalasin B
  3.    both (a) and (b)
  4.    alcohol
 Discuss Question
Answer: Option B. -> cytochalasin B
Question 65. . Transgenic goats produce a variant of human tissue type plasminogen activator protein in
  1.    blood
  2.    urine
  3.    milk
  4.    muscles
 Discuss Question
Answer: Option C. -> milk
Question 66. . Superovulation is an
  1.    increased ovulatory response by external hormonal therapy
  2.    increased ovulatory response by external hormonal therapy
  3.    decreased ovulatory response by external hormonal therapy
  4.    increased ovulatory response by internal hormonal therapy
 Discuss Question
Answer: Option A. -> increased ovulatory response by external hormonal therapy
Question 67. . When the cells are enucleated and centrifuged, nuclei
  1.    detach from cell and settle at the bottom
  2.    detach from cell and remain in the supernatant
  3.    nuclei remain attached to the cell
  4.    none of the above
 Discuss Question
Answer: Option A. -> detach from cell and settle at the bottom
Question 68. . Which of the following best describes artificial insemination?
  1.    Transplanting an embryo into the uterus
  2.    Fertilization of an egg in a test tube
  3.    Selectively breeding healthy animals
  4.    Taking the sperm and placing it directly
 Discuss Question
Answer: Option D. -> Taking the sperm and placing it directly
Question 69. . The number of follicles at any particular stage is governed by
  1.    the rate of entry of dormant follicles
  2.    the rate of growth of follicles
  3.    the rate of loss of follicles
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Question 70. . Which of the following statements is false?
  1.    Continuous variation produces a spread of variation within a population
  2.    Discontinuous variation is the result of genetics alone
  3.    Blood group is an example of discontinuous variation
  4.    Discontinuous variation is influenced by the environment
 Discuss Question
Answer: Option D. -> Discontinuous variation is influenced by the environment

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