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MCQs

Total Questions : 310 | Page 6 of 31 pages
Question 51. The peptidoglycan layer of Staphylococcus aureus consists of a bridge between muramic acid peptides which is composed of?
  1.    alanine
  2.    lysine
  3.    proline
  4.    gycine
 Discuss Question
Answer: Option D. -> gycine
Answer: (d).gycine
Question 52. Binding proteins for active transport systems of Gram-negative bacteria are associated with ____________
  1.    cell membrane
  2.    cytoplasmic membrane
  3.    periplasmic space
  4.    nuclear membrane
 Discuss Question
Answer: Option C. -> periplasmic space
Answer: (c).periplasmic space
Question 53. RNA consists of which combination of bases?
  1.    Thymine,Guanine,Cytosine
  2.    Guanine,Cytosine,Uracil
  3.    Thymine,Adenine,Guanine
  4.    Adenine,Cytosine,Thymine
 Discuss Question
Answer: Option B. -> Guanine,Cytosine,Uracil
Answer: (b).Guanine,Cytosine,Uracil
Question 54. In DNA molecule, the amount of purines is equal to the amount of pyrimidines.
  1.    True
  2.    False
  3.    May be
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 55. Which of the following are features of semiconservative replication?
  1.    RNA replicates DNA molecule
  2.    The DNA molecule produced contains two old templates
  3.    One new DNA helix is formed
  4.    DNA duplicates itself and the new chain contains old template strand and new complementary strand
 Discuss Question
Answer: Option D. -> DNA duplicates itself and the new chain contains old template strand and new complementary strand
Answer: (d).DNA duplicates itself and the new chain contains old template strand and new complementary strand
Question 56. The amino acids for protein synthesis is activated by the enzyme ______________
  1.    rna synthetase
  2.    aminoacyl-tRNA synthetase
  3.    tRNA synthetase
  4.    aminoacyl-mRNA synthetase
 Discuss Question
Answer: Option B. -> aminoacyl-tRNA synthetase
Answer: (b).aminoacyl-tRNA synthetase
Question 57. TRNA has a _______________ structure.
  1.    strand-like
  2.    ball-like
  3.    clover-leaf
  4.    leaf-like
 Discuss Question
Answer: Option C. -> clover-leaf
Answer: (c).clover-leaf
Question 58. Transfer RNA is a single chain of ___________ nucleotides.
  1.    340
  2.    about 100
  3.    about 80
  4.    200
 Discuss Question
Answer: Option C. -> about 80
Answer: (c).about 80
Question 59. The activation of amino acids require energy.
  1.    True
  2.    False
  3.    May be
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 60. The terminal sequence of nucleotides in all tRNA is __________
  1.    ACC
  2.    UGC
  3.    UCC
  4.    AGC
 Discuss Question
Answer: Option A. -> ACC
Answer: (a).ACC

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