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MCQs

Total Questions : 369 | Page 6 of 37 pages
Question 51. Which of the following involves remarkable capacity of short segment of DNA to move from one place to another?
  1.    DNA transposition
  2.    DNA replication
  3.    Translation
  4.    Transcription
 Discuss Question
Answer: Option A. -> DNA transposition
Answer: (a).DNA transposition
Question 52. Which of the following process occurs between DNA molecules of very similar sequences?
  1.    Homologous genetic recombination
  2.    Site specific recombination
  3.    Non-homologous recombination
  4.    Replicative recombination
 Discuss Question
Answer: Option A. -> Homologous genetic recombination
Answer: (a).Homologous genetic recombination
Question 53. Which of the following process occurs in regions where no large –scale sequence similarity is apparent?
  1.    Homologous genetic recombination
  2.    Site specific recombination
  3.    Non-homologous recombination
  4.    Replicative recombination
 Discuss Question
Answer: Option C. -> Non-homologous recombination
Answer: (c).Non-homologous recombination
Question 54. Which of the following occurs between particular short sequences present on otherwise dissimilar parental molecules?
  1.    Homologous genetic recombination
  2.    Site specific recombination
  3.    Non-homologous recombination
  4.    Replicative recombination
 Discuss Question
Answer: Option B. -> Site specific recombination
Answer: (b).Site specific recombination
Question 55. Which of the following process generates a new copy of the transposable element at a new location of DNA?
  1.    Homologous genetic recombination
  2.    Site specific recombination
  3.    Non-homologous recombination
  4.    Replicative recombination
 Discuss Question
Answer: Option D. -> Replicative recombination
Answer: (d).Replicative recombination
Question 56. Which of the following promotes branch migration at higher rates than does Rec-A?
  1.    Rec-B
  2.    Rec-C
  3.    Rec-D
  4.    Ruv-A and Ruv-B
 Discuss Question
Answer: Option D. -> Ruv-A and Ruv-B
Answer: (d).Ruv-A and Ruv-B
Question 57. The sequences of the recombination sites recognized by site-specific recombinases are
  1.    Partially asymmetric
  2.    Partially symmetric
  3.    Symmetric
  4.    Palindromic
 Discuss Question
Answer: Option A. -> Partially asymmetric
Answer: (a).Partially asymmetric
Question 58. Which of the following is called a resolvase?
  1.    Ruv-C
  2.    Ruv-A
  3.    Ruv-B
  4.    Rec-A
 Discuss Question
Answer: Option A. -> Ruv-C
Answer: (a).Ruv-C
Question 59. Which of the following contain only the sequences required for transposition and the genes for proteins that promote the process?
  1.    Insertion sequences
  2.    Complex transposons
  3.    Transposons
  4.    Chromosomes
 Discuss Question
Answer: Option A. -> Insertion sequences
Answer: (a).Insertion sequences
Question 60. Which of the following does not code for an enzyme having both helicase and nuclease activity?
  1.    Rec-A
  2.    Rec-B
  3.    Rec-C
  4.    Rec-D
 Discuss Question
Answer: Option A. -> Rec-A
Answer: (a).Rec-A

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