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MCQs

Total Questions : 86 | Page 5 of 9 pages
Question 41.  DNA into fish is injected into
  1.    pronuclei
  2.    cytoplasm
  3.    both (a) and (b)
  4.    none of these
 Discuss Question
Answer: Option B. -> cytoplasm
Question 42.  Which of the following is the word used to describe what happens when the nucleus of a sperm joins with the nucleus of an egg cell?
  1.    Sex
  2.    Fertilisation
  3.    Intercourse
  4.    Reproduction
 Discuss Question
Answer: Option B. -> Fertilisation
Question 43.  Which of the following is the process of choosing parent organisms for the characteristics that is wanted in their offspring?
  1.    Active selection
  2.    Reproductive selection
  3.    Selective breeding
  4.    Breeding selection
 Discuss Question
Answer: Option C. -> Selective breeding
Question 44.  Transgenic goats have been used to produce which of the following protein that is used for dissolving blood clots?
  1.    Amyloid precursor protein
  2.    α1-anti trypsin (AAT)
  3.    Casein
  4.    A variant of human tissue-type plasminogen activator
 Discuss Question
Answer: Option D. -> A variant of human tissue-type plasminogen activator
Question 45.  Which protein has been produced generating a transgenic sheep that is used for replacement therapy for individuals at risk from emphysema?
  1.    Plasminogen activator (tPA)
  2.    α-anti trypsin (AAT)
  3.    Casein
  4.    Amyloid precursor proteins
 Discuss Question
Answer: Option B. -> α-anti trypsin (AAT)
Question 46.  Transfection refers to which of the following?
  1.    Synthesis of mRNA from DNA template
  2.    Synthesis of protein based on mRNA sequence
  3.    Introduction of foreign gene in to a cell
  4.    The process by which a cell become malignant
 Discuss Question
Answer: Option C. -> Introduction of foreign gene in to a cell
Question 47. . Genetic change can occur only in
  1.    one way
  2.    two ways
  3.    hree ways
  4.    four ways
 Discuss Question
Answer: Option D. -> four ways
Question 48.  Chromosomes may be isolated from metaphase cells by
  1.    hypertonic lysis
  2.    hypotonic lysis
  3.    either (a) or (b)
  4.    isotonic lysis
 Discuss Question
Answer: Option B. -> hypotonic lysis
Question 49. . When a fertilized egg cell develops into an embryo, the entropy of the living system
  1.    decreases
  2.    increases
  3.    remains constant
  4.    none of these
 Discuss Question
Answer: Option A. -> decreases
Question 50. . Animal pharming can be defined as
  1.    growing animals for farming
  2.    programming animals to produce novel products
  3.    generating transgenic animals for farming
  4.    none of the above
 Discuss Question
Answer: Option B. -> programming animals to produce novel products

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