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MCQs

Total Questions : 95 | Page 4 of 10 pages
Question 31. What is rate of elongation of DNA in humans?
  1.    1 per second
  2.    10 per second
  3.    50 per second
  4.    100 per second
 Discuss Question
Answer: Option C. -> 50 per second
Answer: (c).50 per second
Question 32. Y shaped region where parent DNA strands are being unwound is called
  1.    replication fork
  2.    replication bubble
  3.    Y fork
  4.    helix
 Discuss Question
Answer: Option A. -> replication fork
Answer: (a).replication fork
Question 33. How many genes are present in E Coli?
  1.    4400
  2.    1000
  3.    100
  4.    6000
 Discuss Question
Answer: Option A. -> 4400
Answer: (a).4400
Question 34. Replication of DNA molecule follows which of following rule?
  1.    conservative
  2.    semi conservative
  3.    replicative
  4.    destructive
 Discuss Question
Answer: Option B. -> semi conservative
Answer: (b).semi conservative
Question 35. Nucleosomes have which of following function besides DNA packaging?
  1.    gene silencing
  2.    gene expression
  3.    DNA replication
  4.    protein translation
 Discuss Question
Answer: Option B. -> gene expression
Answer: (b).gene expression
Question 36. If unwound, one DNA molecule would be how long?
  1.    1 m
  2.    10 cm
  3.    5 cm
  4.    4 cm
 Discuss Question
Answer: Option D. -> 4 cm
Answer: (d).4 cm
Question 37. How many primers, leading strand requires to elongate new strand?
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option A. -> 1
Answer: (a).1
Question 38. Which of following molecules make backbone of DNA molecule?
  1.    sugar-phosphate
  2.    sugar-base
  3.    base-phosphate
  4.    base-sugar-phosphate
 Discuss Question
Answer: Option A. -> sugar-phosphate
Answer: (a).sugar-phosphate
Question 39. In which of following direction a new DNA molecule is elongated by polymerase?
  1.    5 to 3 end
  2.    3 to 5 end
  3.    no direction
  4.    along the template strand
 Discuss Question
Answer: Option A. -> 5 to 3 end
Answer: (a).5 to 3 end
Question 40. Which of following bases binds with cytosine?
  1.    uracil
  2.    guanine
  3.    thymine
  4.    adenine
 Discuss Question
Answer: Option B. -> guanine
Answer: (b).guanine

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