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MCQs

Total Questions : 95 | Page 1 of 10 pages
Question 1. Histones are made up of approximately how many amino acids?
  1.    200
  2.    100
  3.    500
  4.    10
 Discuss Question
Answer: Option B. -> 100
Answer: (b).100
Question 2. Which of following binds to and stabilizes single-stranded DNA until it is used as a template?
  1.    helicase
  2.    topoisomerase
  3.    DNA polymerase I
  4.    single strand binding proteins
 Discuss Question
Answer: Option D. -> single strand binding proteins
Answer: (d).single strand binding proteins
Question 3. What is initial error rate of DNA replication?
  1.    10⁵
  2.    10²
  3.    10⁹
  4.    10¹
 Discuss Question
Answer: Option A. -> 10⁵
Answer: (a).10⁵
Question 4. Which of following bases binds with adenine?
  1.    thymine
  2.    cytosine
  3.    guanine
  4.    uracil
 Discuss Question
Answer: Option A. -> thymine
Answer: (a).thymine
Question 5. What is rate of elongation of DNA in bacteria?
  1.    100 per second
  2.    500 per second
  3.    20 per second
  4.    1 per second
 Discuss Question
Answer: Option B. -> 500 per second
Answer: (b).500 per second
Question 6. Which of following bases binds with Uracil in RNA?
  1.    guanine
  2.    cytosine
  3.    adenine
  4.    thymine
 Discuss Question
Answer: Option C. -> adenine
Answer: (c).adenine
Question 7. Which of following is not a part of three models that were proposed for DNA replication?
  1.    semi conservative
  2.    destructive
  3.    conservative
  4.    dispersive
 Discuss Question
Answer: Option B. -> destructive
Answer: (b).destructive
Question 8. In which of following directions, two backbones of DNA molecule runs?
  1.    parallel
  2.    anti parallel
  3.    intersecting
  4.    rounded
 Discuss Question
Answer: Option B. -> anti parallel
Answer: (b).anti parallel
Question 9. Which of following proteins are responsible for first level packaging of DNA?
  1.    hemoglobin
  2.    chromatin
  3.    histones
  4.    helicase
 Discuss Question
Answer: Option C. -> histones
Answer: (c).histones
Question 10. How many DNA repair enzymes have been found so far in E Coli?
  1.    1000
  2.    130
  3.    32
  4.    12
 Discuss Question
Answer: Option B. -> 130
Answer: (b).130

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