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MCQs

Total Questions : 133 | Page 5 of 14 pages
Question 41. What is the term given to the supercoiling of circular DNA?
  1.    Twist number
  2.    Linking number
  3.    Writhe number
  4.    Cross-linking
 Discuss Question
Answer: Option B. -> Linking number
Answer: (b).Linking number
Question 42. Which of them is used to introduce negative supercoiling in DNA?
  1.    Type 1 topoisomerase
  2.    Ethidium bromide
  3.    Gyrase/ type 2 topoisomerase
  4.    SYBR gold
 Discuss Question
Answer: Option C. -> Gyrase/ type 2 topoisomerase
Answer: (c).Gyrase/ type 2 topoisomerase
Question 43. Which of this factor is not responsible for thermal denaturation of DNA?
  1.    PH
  2.    Temperature
  3.    Ionic strength
  4.    Humidity
 Discuss Question
Answer: Option D. -> Humidity
Answer: (d).Humidity
Question 44. Name the class of RNA which takes part in RNA Editing?
  1.    snRNA
  2.    tRNA
  3.    gRNA
  4.    SiRNA
 Discuss Question
Answer: Option C. -> gRNA
Answer: (c).gRNA
Question 45. Class of carbohydrate which cannot be hydrolyzed further, is known as?
  1.    Disaccharides
  2.    Polysaccharides
  3.    Proteoglycan
  4.    Monosaccharide
 Discuss Question
Answer: Option D. -> Monosaccharide
Answer: (d).Monosaccharide
Question 46. Sugars which differs from each other only around single carbon atom is called epimer.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 47. Which class of carbohydrates is considered as non-sugar?
  1.    Monosaccharides
  2.    Disaccharides
  3.    Polysaccharides
  4.    Oligosaccharides
 Discuss Question
Answer: Option C. -> Polysaccharides
Answer: (c).Polysaccharides
Question 48. Carbohydrates are also known as___________
  1.    Hydrates of carbon
  2.    Carbonates
  3.    Glycolipids
  4.    Polysaccharides
 Discuss Question
Answer: Option A. -> Hydrates of carbon
Answer: (a).Hydrates of carbon
Question 49. A molecule of amylopectin which contains 1500 glucose residues and is branched after every 30 residues. How many reducing ends are there?
  1.    0
  2.    1
  3.    2
  4.    5
 Discuss Question
Answer: Option B. -> 1
Answer: (b).1
Question 50. Which of the following glycosidic linkage found in maltose?
  1.    Glucose (α-1 – 2β) Fructose
  2.    Glucose (α1 – 4) Glucose
  3.    Galactose (β1 – 4) Glucose
  4.    Glucose (β1 – 4) Glucose
 Discuss Question
Answer: Option B. -> Glucose (α1 – 4) Glucose
Answer: (b).Glucose (α1 – 4) Glucose

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