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MCQs

Total Questions : 301 | Page 29 of 31 pages
Question 281. In induced fit model the substrate interacts with the active site to change it's
  1.    affinity
  2.    shape
  3.    size
  4.    nature
 Discuss Question
Answer: Option B. -> shape
Answer: (b).shape
Question 282. High affinity ligands, which are able to reside in binding site longer have high
  1.    intermolecular force
  2.    kinetic energy
  3.    both a and b
  4.    pH
 Discuss Question
Answer: Option A. -> intermolecular force
Answer: (a).intermolecular force
Question 283. Phosphatase is a protein enzyme that removes
  1.    sulphate group
  2.    amino group
  3.    phosphate group
  4.    hydroxyl group
 Discuss Question
Answer: Option C. -> phosphate group
Answer: (c).phosphate group
Question 284. Adding a phosphate group to proteins is called
  1.    replication
  2.    hydrogenation
  3.    phosphorylation
  4.    carbation
 Discuss Question
Answer: Option C. -> phosphorylation
Answer: (c).phosphorylation
Question 285. The phenomenon in which the effect of one allele in heterozygous genotype completely masks the effect of other is called
  1.    co-dominance
  2.    dominance
  3.    complete dominance
  4.    in complete dominance
 Discuss Question
Answer: Option C. -> complete dominance
Answer: (c).complete dominance
Question 286. A phosphate group is added by protein enzyme called
  1.    kinase
  2.    helicase
  3.    gyrase
  4.    polymerase
 Discuss Question
Answer: Option A. -> kinase
Answer: (a).kinase
Question 287. A slight change in a single amino acid in polypeptide chain results in
  1.    Mutation
  2.    genetic code
  3.    polymerization
  4.    Replication
 Discuss Question
Answer: Option A. -> Mutation
Answer: (a).Mutation
Question 288. The coiling and folding of polypeptide chain gives us
  1.    1° structure
  2.    2° structure
  3.    3° structure
  4.    4° structure
 Discuss Question
Answer: Option B. -> 2° structure
Answer: (b).2° structure
Question 289. In the peptide chain the alpha helix is secured by
  1.    sulfur linkage
  2.    amide group
  3.    carboxyl group
  4.    hydrogen bonding
 Discuss Question
Answer: Option D. -> hydrogen bonding
Answer: (d).hydrogen bonding
Question 290. 2° structure of proteins is of
  1.    only one type
  2.    three types
  3.    two types
  4.    four types
 Discuss Question
Answer: Option C. -> two types
Answer: (c).two types

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