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MCQs

Total Questions : 238 | Page 4 of 24 pages
Question 31. 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
Answer: (d).A variant of human tissue-type plasminogen activator
Question 32. 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
Answer: (b).hypotonic lysis
Question 33. 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 (<1.7 mm)
  4.    decreased atresia in small follicles (<1.7 mm)
 Discuss Question
Answer: Option A. -> decreased atresia in medium and large follicles (>1.7 mm)
Answer: (a).decreased atresia in medium and large follicles (>1.7 mm)
Question 34. 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
Answer: (c).Introduction of foreign gene in to a cell
Question 35. Genetic change can occur only in
  1.    one way
  2.    two ways
  3.    three ways
  4.    four ways
 Discuss Question
Answer: Option D. -> four ways
Answer: (d).four ways
Question 36. The degree or extent to which a given genotype is expressed phenotypically in a particular individual is defined as
  1.    penetrance
  2.    expressivity
  3.    inheritance strength
  4.    environmental influence
 Discuss Question
Answer: Option B. -> expressivity
Answer: (b).expressivity
Question 37. How many chromosomes are there in Caernorhabditis elegans?
  1.    3
  2.    6
  3.    9
  4.    12
 Discuss Question
Answer: Option B. -> 6
Answer: (b).6
Question 38. Exchange of segments between non homologous chromosomes is best known as
  1.    translation
  2.    translocation
  3.    recombination
  4.    crossing over
 Discuss Question
Answer: Option B. -> translocation
Answer: (b).translocation
Question 39. If two genes show 50% recombination
  1.    they are on different chromosomes
  2.    they are on same chromosome but far apart
  3.    both (a) and (b)
  4.    they are closely located on the same chromosome
 Discuss Question
Answer: Option C. -> both (a) and (b)
Answer: (c).both (a) and (b)
Question 40. Which of the following denotes a pair of contrasting characters?
  1.    Alleles
  2.    Phenotype
  3.    Homozygous
  4.    Genotype
 Discuss Question
Answer: Option A. -> Alleles
Answer: (a).Alleles

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