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MCQs

Total Questions : 107 | Page 10 of 11 pages
Question 91. Changes in cell shape occur due to changes in the orientation of cytoskeletal elements.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 92. Crawling of cells over a substratum is an example of _________________
  1.    chemotraction
  2.    neurodegenration
  3.    nonmuscle motility
  4.    muscular motility
 Discuss Question
Answer: Option C. -> nonmuscle motility
Answer: (c).nonmuscle motility
Question 93. Atomic force microscopy uses _____________
  1.    X-rays
  2.    Infrared light
  3.    Nanosized tip
  4.    Nickel tip
 Discuss Question
Answer: Option C. -> Nanosized tip
Answer: (c).Nanosized tip
Question 94. In fluorescence speckle microscopy, cytoskeletal filaments are uniformly labeled.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 95. In total internal reflection microscopy (TIRF), thin planes can be focused.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 96. Which types of lasers are used in optical tweezers?
  1.    Laser beams
  2.    UV-rays
  3.    X-rays
  4.    Radio waves
 Discuss Question
Answer: Option A. -> Laser beams
Answer: (a).Laser beams
Question 97. Variants of a protein are called __________
  1.    isotopes
  2.    isomers
  3.    isoforms
  4.    enantiomers
 Discuss Question
Answer: Option C. -> isoforms
Answer: (c).isoforms
Question 98. The microtubule-binding activity of MAPs is controlled by ______________
  1.    phosphorylation
  2.    oxidation
  3.    reduction
  4.    hydrolysis
 Discuss Question
Answer: Option A. -> phosphorylation
Answer: (a).phosphorylation
Question 99. Neurofibrillary tangles, found in the brain cells of persons with neurodegenerative disorders consists of _______________
  1.    intermediate filaments
  2.    microtubule-associated proteins
  3.    microtubules
  4.    phospholipids
 Discuss Question
Answer: Option B. -> microtubule-associated proteins
Answer: (b).microtubule-associated proteins
Question 100. All the protofilaments of a microtubule have the same _____________
  1.    polarity
  2.    pH
  3.    fluorescence
  4.    torque
 Discuss Question
Answer: Option A. -> polarity
Answer: (a).polarity

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