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MCQs

Total Questions : 111 | Page 5 of 12 pages
Question 41. Which of following results from loss of cell cycle control?
  1.    cancer
  2.    infection
  3.    stunted growth
  4.    neurodegeneration
 Discuss Question
Answer: Option A. -> cancer
Answer: (a).cancer
Question 42. Which of following cell types divide throughout life?
  1.    skin cells
  2.    nerve cells
  3.    liver cells
  4.    brain cells
 Discuss Question
Answer: Option A. -> skin cells
Answer: (a).skin cells
Question 43. How many DNA molecules are present in a prokaryotic genome?
  1.    one
  2.    two
  3.    three
  4.    four
 Discuss Question
Answer: Option A. -> one
Answer: (a).one
Question 44. If unwound, how long would be DNA of a typical human cell?
  1.    2m
  2.    5m
  3.    1m
  4.    10m
 Discuss Question
Answer: Option A. -> 2m
Answer: (a).2m
Question 45. In which year was PCR devised?
  1.    1985
  2.    1995
  3.    2005
  4.    1983
 Discuss Question
Answer: Option A. -> 1985
Answer: (a).1985
Question 46. Radial array that originates from each centrosome is called
  1.    chromatin
  2.    cluster
  3.    aster
  4.    histone
 Discuss Question
Answer: Option C. -> aster
Answer: (c).aster
Question 47. What is minimum length of primers that need to present for them to be functional in a PCR reaction?
  1.    200 nucleotides
  2.    15 nucleotides
  3.    3 nucleotides
  4.    6 nucleotides
 Discuss Question
Answer: Option B. -> 15 nucleotides
Answer: (b).15 nucleotides
Question 48. At what temperature is DNA first exposed to in a PCR reaction to denature it?
  1.    10° C
  2.    56° C
  3.    80° C
  4.    95° C
 Discuss Question
Answer: Option D. -> 95° C
Answer: (d).95° C
Question 49. Addition of which of following groups to bacterial DNA protects it from its restriction enzymes?
  1.    acetyl
  2.    nitrogen
  3.    ethyl
  4.    methyl
 Discuss Question
Answer: Option D. -> methyl
Answer: (d).methyl
Question 50. After about how many base pairs does an SNP occur in human DNA?
  1.    90-100
  2.    20-30
  3.    100-110
  4.    100-300
 Discuss Question
Answer: Option D. -> 100-300
Answer: (d).100-300

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