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MCQs

Total Questions : 82 | Page 8 of 9 pages
Question 71. . R factors involved in plant-microbe interactions are
  1.    plant proteins
  2.    bacterial proteins
  3.    essential for transfer of DNA to plant cells
  4.    also called opines
 Discuss Question
Answer: Option A. -> plant proteins
Question 72. . Which of the following term describes the relationship between a virus and host where no new viral particles are produced and the viral genome is replicated along with host chromosome?
  1.    Lysogeny
  2.    Lysis
  3.    Transformation
  4.    Conjugation
 Discuss Question
Answer: Option A. -> Lysogeny
Question 73. . Plasmid that carries genes encoding enzymes, which degrade substances such as aromatic compounds, pesticides or sugar are
  1.    F factors
  2.    metabolic plasmid
  3.    virulence plasmid
  4.    none of these
 Discuss Question
Answer: Option B. -> metabolic plasmid
Question 74. . Inverted repeat sequences at each end and a gene encoding transposase is contained in which of the following transposable element?
  1.    Composite transposon
  2.    Insertion element
  3.    Virus
  4.    Plasmid
 Discuss Question
Answer: Option B. -> Insertion element
Question 75. . F factor plasmids play a major role in
  1.    conjugation
  2.    replication
  3.    transduction
  4.    trasnscription
 Discuss Question
Answer: Option A. -> conjugation
Question 76. . The chromosomal genes, possessing fertility factor is known as
  1.    R factor
  2.    F prime factor
  3.    HFr
  4.    F factor
 Discuss Question
Answer: Option B. -> F prime factor
Question 77. . Which of the following genetic elements carry the genes required for integration into host chromosomes?
  1.    Replicon
  2.    Plasmids
  3.    Transposons
  4.    Tandons
 Discuss Question
Answer: Option C. -> Transposons
Question 78. . Which of the following statement can describe horizontal transfer?
  1.    The synthesis of protein in RNA
  2.    The transmission of genetic information from one independent, mature organism to another
  3.    The transmission of genetic information from parent to offspring
  4.    The synthesis of RNA from a DNA template
 Discuss Question
Answer: Option B. -> The transmission of genetic information from one independent, mature organism to another
Question 79. . F factor plasmids play a major role in
  1.    conjugation
  2.    replication
  3.    transduction
  4.    trasnscription
 Discuss Question
Answer: Option A. -> conjugation
Question 80. . The chromosomal genes, possessing fertility factor is known as
  1.    R factor
  2.    F prime factor
  3.    HFr
  4.    F factor
 Discuss Question
Answer: Option B. -> F prime factor

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