Blog

Q.23 Km of an enzyme-catalysed reaction is: Substrate concentration at which reaction rate is half of the maximum. Product concentration at which reaction rate is half of the maximum. Substrate […]

Q.22 The catalytic efficiency of an enzyme refers to: Kcat Km Kcat / Km Km / Kcat The correct answer is Kcat / Km. This ratio measures an enzyme’s catalytic efficiency, […]

Q.21 Find the odd one among the following: James Sumner → Urease Holoenzyme → Functional enzyme plus coenzyme and/or metal ion Apoenzyme → Enzyme + prosthetic group Hexokinase → Mg2+ […]

Q.20 During translation, the directionality of polypeptide synthesis is ? 1. C-tenninal to N-terminal direction. 2. N-tenninal to 3′ direction. 3. 5′ to C-terminal direction. 4. N-tenninal to C-terminal direction. […]

Q.19 What are the possible number of reading frames in any given double stranded DNA sequence: 1. 6 2. 3 3. 9 4. 2 A double-stranded DNA sequence has six […]

Q.18 DNA photolyases are the enzymes that convelt : I. Pyrimidine dimers to monomers with FADH2 as cofactor. 2. Pyrimidine monomers to dimers with FADH2 as cofactor. 3. Pyrimidine monomers […]

Q.17 Given below is the triple nature of codon, the possible permutation of four bases (A, G, T, C) is: 1. 43 2. 4 × 3 3. 34 4. 44 […]

Q.16 Which of the following mutations is least deleterious in a genome : 1. Missense mutation 2. Non-sense mutation 3. Silent mutation 4. Violent mutations Silent mutation is the least […]

Q.15 An oxyhemoglobin molecule contains ? l. Protein + heme with iron + C02 2. Protein + Chlorophyll with magnesium +02 3. Lipid + Sugar + O2 4. Heme with […]

Q.14 Diabetes is a : 1. Genetic disorder 2. Metabolic disorder 3. Genetic and metabolic disorder 4. Chromosomal disorder and digestive disorder Diabetes is primarily a metabolic disorder characterized by […]