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MCQs

Total Questions : 115 | Page 9 of 12 pages
Question 81. Match the organisms in Group I with the entries in Group II.Group I                Group IIP. Clostridium   1. Rods with teichoic acid in the cell wallQ. Escherichia   2. Rods with endosporesR. Vibrio              3. Helical rods with flagellaS. Bacillus           4. Rods with LPS in the outer membrane                             5. Curved rods with polar flagella
  1.    P-2, Q-4, R-5, S-1
  2.    P-2, Q-1, R-5, S-4
  3.    P-5, Q-4, R-2, S-3
  4.    P-3, Q-2, R-1, S-4
 Discuss Question
Answer: Option A. -> P-2, Q-4, R-5, S-1


-NA-


Question 82. Match the entries in Group I with the methods of sterilization in Group II.Group I                 Group IIP. Serum             1. AutoclaveQ. Luria broth    2. Membrane filtrationR. Polypropylene tubes 3. UV irradiationS. Biological safety cabinets 4. Gamma irradiation                               5. Dry heat
  1.    P-5, Q-3, R-1, S-4
  2.    P-1, Q-4, R-5, S-3
  3.    P-2, Q-1, R-4, S-3
  4.    P-4, Q-1, R-3, S-5
 Discuss Question
Answer: Option C. -> P-2, Q-1, R-4, S-3


-NA-


Question 83. Match the high energy compounds in Group I with the biosynthetic pathways for the molecules in
Group II.Group I       Group IIP. GTP         1. Fatty acidQ. UTP        2. PhospholipidR. CTP         3. ProteinS. Acyl coenzyme A  4. Peptidoglycan
  1.    P-3, Q-2, R-4, S-1
  2.    P-2, Q-4, R-3, S-1
  3.    P-4, Q-3, R-1, S-2
  4.    P-3, Q-4, R-2, S-1
 Discuss Question
Answer: Option D. -> P-3, Q-4, R-2, S-1


-NA-


Question 84. Consider the data set 14, 18, 14, 14, 10, 29, 33, 31, 25. If you add 20 to each of the values, then
  1.    both mean and variance change
  2.    both mean and variance are unchanged
  3.    the mean is unchanged, variance changes
  4.    the mean changes, the variance is unchanged
 Discuss Question
Answer: Option D. -> the mean changes, the variance is unchanged


-NA-


Question 85. Match the vitamins in Group I with the processes/reactions in Group II.Group I                            Group IIP. Pantothenic acid    1 . Electron transportQ. Vitamin B2             2. Transfer of 1-C unitsR. Vitamin B6             3. DecarboxylationS. Folic acid               4 . Fatty acid metabolism                                   5. Hydrolysis
  1.    P-5, Q-2, R-4, S-1
  2.    P-4, Q-1, R-3, S-2
  3.    P-4, Q-2, R-1, S-3
  4.    P-2, Q-1, R-3, S-5
 Discuss Question
Answer: Option B. -> P-4, Q-1, R-3, S-2


-NA-


Question 86. Which one of the following modifications is common toboth protein and DNA?
  1.    SUMOylation
  2.    Nitrosylation
  3.    Methylation
  4.    Ubiquitination
 Discuss Question
Answer: Option C. -> Methylation


-NA-


Question 87. Under alkaline conditions, DNA is more stable than RNA because
  1.    RNA forms secondary structures
  2.    RNA is a single stranded molecule
  3.    RNA has uracil in place of thymidine
  4.    RNA is susceptible to hydrolysis
 Discuss Question
Answer: Option D. -> RNA is susceptible to hydrolysis


-NA-


Question 88. Protein A, which has strong affinity to Fc region of immunoglobulin, is extracted from
  1.    Saccharomyces cerevisiae
  2.    Staphylococcus aureus
  3.    Streptococcus pyogenes
  4.    Streptococcus sanguis
 Discuss Question
Answer: Option B. -> Staphylococcus aureus


-NA-


Question 89. Which one of the following aminoacids in proteins does NOT undergo phosphorylation?
  1.    Ser
  2.    Thr
  3.    Pro
  4.    Tyr
 Discuss Question
Answer: Option C. -> Pro


-NA-


Question 90. The first humanized monoclonal antibody approved for the treatment of breast canceris
  1.    Rituximab
  2.    Cetuximab
  3.    Bevacizumab
  4.    Herceptin
 Discuss Question
Answer: Option D. -> Herceptin


-NA-


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