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MCQs

Total Questions : 86 | Page 6 of 9 pages
Question 51. . 
Which of these carries the thousands of genes needed to allow animal and plant cells to pass on inherited characteristics?
  1.    Chromosomes
  2.    Chromatogram
  3.    Chromatography
  4.    Chromium
 Discuss Question
Answer: Option A. -> Chromosomes
Question 52.  Superovulation is primarily the result of
  1.    decreased atresia in medium and large follicles (>1.7 mm)
  2.    increased atresia in medium and large follicles (>1.7 mm)
  3.    increased atresia in the large follicles (
  4.    decreased atresia in small follicles (
 Discuss Question
Answer: Option A. -> decreased atresia in medium and large follicles (>1.7 mm)
Question 53. . For the transfer of whole individual chromosomes, they are isolated from the cells at
  1.    prophase
  2.    metaphase
  3.    telophase
  4.    anaphase
 Discuss Question
Answer: Option B. -> metaphase
Question 54. . Fusion of karyoplast with the enucleated cell is achieved in presence of
  1.    cytochalasin B
  2.    polyethylene glycol
  3.    both (a) and (b)
  4.    alcohol
 Discuss Question
Answer: Option B. -> polyethylene glycol
Question 55. . Which of the following statement is correct?
  1.    Variation is caused by genes
  2.    Variation is caused by the environment
  3.    Variation can be caused by both genes and the environment
  4.    None of the above
 Discuss Question
Answer: Option A. -> Variation is caused by genes
Question 56. . Which of the following gene have been introduced into the transgenic fish?
  1.    Human or rat gene for growth hormone
  2.    Chicken gene for delta crystalline protein
  3.    E. coli gene for β-galactosidase
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 57. . Cloning is a method by which numbers of genetically identical organisms are derived from a single organism by
  1.    vegetative propagation
  2.    vegetative initiation
  3.    vegetative termination
  4.    none of these
 Discuss Question
Answer: Option A. -> vegetative propagation
Question 58. . Production of transgenic animals require transfections of
  1.    eggs or embryos
  2.    stem cells
  3.    red blood cells
  4.    all of these
 Discuss Question
Answer: Option A. -> eggs or embryos
Question 59. . In transgenic fish, the genes are introduced by
  1.    microinjection in fish
  2.    viruses
  3.    transfer of whole nuclei
  4.    all of these
 Discuss Question
Answer: Option A. -> microinjection in fish
Question 60. . Which of the following statements best describes a clone?
  1.    An artificial life form
  2.    An offspring where all of the genetic material in every cell is identical to that of both parents
  3.    An offspring where all of the genetic material in every cell is identical to that of one of its parents
  4.    A type of sheep
 Discuss Question
Answer: Option C. -> An offspring where all of the genetic material in every cell is identical to that of one of its parents

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