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Q.31 Amino acid residues predominantly involved in protein-DNA interactions are (A) alanines (B) negatively charged (C) prolines (D) positively charged The correct answer is: (D) positively charged amino acid residues are predominantly […]

Q.30 Gel filtration profile and corresponding activity data for a pure enzyme are shown in the figure below. The same enzyme sample on SDS-PAGE runs as a 30 kDa polypeptide. […]

Q.29 Inter-conversion of UDP-glucose and UDP-galactose is catalyzed by (A) an oxidase (B) a kinase (C) an epimerase (D) a mutase The inter-conversion of UDP-glucose and UDP-galactose is catalyzed by an […]

Q.28 Hydrolysis of a peptide involves cleavage of the bond between the atoms (A) N and C𝛼 (B) C and O (C) C𝛼 and C (D) N and C Hydrolysis […]

Q. 27 Phosphoglucose isomerase was incubated with 0.2 M of glucose 6-phosphate. On reaching equilibrium, 𝟓𝟓% of glucose 6 -phosphate was converted to fructose 6 -phosphate. The equilibrium constant for […]

Q.26 Heterologous expression of green fluorescent protein is possible because the genetic code is (A) universal (B) triplet (C) degenerate (D) non-overlapping The correct answer is (A) universal. The green fluorescent […]

Q.25 For propene at 298 K, the molar enthalpy of hydrogenation is −124.27 kJ mol−1 and the standard enthalpy of formation is 20.42 kJ mol−1. For propane at 298 K, […]

Q.24 For a weak acid at 298 K, the molar conductivities (in ohm−1 m2 mol−1), at infinite dilution and 0.04 mol dm−3 are 4.3 × 10−3 and 1.0 × 10−3, […]

Q. 23 The major product formed in the following reaction is Question Overview The alkene shown undergoes the following reaction: Reagents: B₂H₆ / diglyme H₂O₂ / OH⁻ You are asked […]

Q. 22 When 1.0 g of urea (Molecular Weight = 𝟔𝟎 ) is dissolved in 200 g of solvent 𝐒, the freezing point of 𝐒 is lowered by 𝟎. 𝟐𝟓∘𝐂. […]