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MCQs

Total Questions : 79 | Page 8 of 8 pages
Question 71. Virus synthesizes its own self and then transfer itself by using biosynthetic machinery of
  1.    own
  2.    bacteria
  3.    host
  4.    cell
 Discuss Question
Answer: Option C. -> host
Answer: (c).host
Question 72. Hepatitis B is also known as
  1.    HCV
  2.    HAV
  3.    serum hepatitis
  4.    HIV
 Discuss Question
Answer: Option C. -> serum hepatitis
Answer: (c).serum hepatitis
Question 73. Process in which infections becomes incorporated into bacterial chromosome instead of taking control of host's machinery is termed as
  1.    progeny
  2.    lysogeny
  3.    isogeny
  4.    metageny
 Discuss Question
Answer: Option B. -> lysogeny
Answer: (b).lysogeny
Question 74. Retroviruses can convert a single stranded RNA genome into double stranded viral DNA by special enzyme
  1.    Transcriptase
  2.    Reverse transcriptase
  3.    Auto Transcriptase
  4.    Catalase
 Discuss Question
Answer: Option B. -> Reverse transcriptase
Answer: (b).Reverse transcriptase
Question 75. Phage in which lysis of host cell takes place is
  1.    prophage
  2.    lytic phage
  3.    virulent phage
  4.    metaphage
 Discuss Question
Answer: Option C. -> virulent phage
Answer: (c).virulent phage
Question 76. Enzyme which dissolves wall of a bacteria is
  1.    lactase
  2.    lysozyme
  3.    sucrase
  4.    fructase
 Discuss Question
Answer: Option B. -> lysozyme
Answer: (b).lysozyme
Question 77. Phage tail structure of a bacteriophage is more complex than its
  1.    body
  2.    tail
  3.    head
  4.    tentacles
 Discuss Question
Answer: Option C. -> head
Answer: (c).head
Question 78. When HIV invades in an individual, it destroys its
  1.    nervous system
  2.    digestive system
  3.    circulatory system
  4.    immune system
 Discuss Question
Answer: Option D. -> immune system
Answer: (d).immune system
Question 79. Zea mays (corn) belongs to phylum
  1.    tracheophyta
  2.    monera
  3.    protozoa
  4.    protista
 Discuss Question
Answer: Option A. -> tracheophyta
Answer: (a).tracheophyta

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