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MCQs

Total Questions : 58 | Page 5 of 6 pages
Question 41.  What is the size (in kb) of the tobacco chloroplast genome?
  1.    55 kilobase
  2.    155 kilobase
  3.    325 kilobase
  4.    375 kilobase
 Discuss Question
Answer: Option B. -> 155 kilobase
Question 42.  Which of the following technology is used for micro array manufacturing?
  1.    Photolithography
  2.    Ink jetting
  3.    Contact printing
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Question 43.  
Which of the following adaptations would it be desirable for a farmer to breed into a crop of wheat?
  1.    Early ripening
  2.    Resistance to disease
  3.    Resistance to pests
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Question 44.  Microbiosensors are based on
  1.    ions effect
  2.    ionsensitive field effect transistor
  3.    piezoelectric effect
  4.    magnetic effect
 Discuss Question
Answer: Option B. -> ionsensitive field effect transistor
Question 45. . Microarrays are also known as
  1.    biochips
  2.    DNA chips
  3.    gene chips
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Question 46. . When a gardener takes a cutting from a plant, indicating that he has made a
  1.    clone
  2.    mutation
  3.    new species
  4.    new variety
 Discuss Question
Answer: Option A. -> clone
Question 47. . Pollination is the process by which plants transfer male sex cells from one plant to another. How does the nucleus of the male cell reach the female cell?
  1.    It travels on the legs of bees and sticks to the egg cell
  2.    The pollen grain grows a pollen tube and the nucleus travels down the pollen tube to reach the egg cell
  3.    It blows in the wind
  4.    None of the above
 Discuss Question
Answer: Option B. -> The pollen grain grows a pollen tube and the nucleus travels down the pollen tube to reach the egg cell
Question 48.  To qualify as a micro array the analytical device must be
  1.    ordered
  2.    microscopic
  3.    planer and specific
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Question 49. .  Microarray analysis involves biological assays based on
  1.    gels
  2.    filters
  3.    purification columns
  4.    small glass chips
 Discuss Question
Answer: Option D. -> small glass chips
Question 50. . Single stranded circular RNA encapsidated with a larger RNA in a plant virus is
  1.    a virion
  2.    a viroid
  3.    a virusoid
  4.    none of these
 Discuss Question
Answer: Option C. -> a virusoid

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