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Q.19 In E. coli, pur repressor regulates the expression of more genes as compared to lac repressor because 1. pur repressor binds to DNA without corepressor 2. pur repressor is […]

Q.18 How many ATP molecules are produced for each molecule of FADH2 oxidized via the respiratory chain? 1.0.5 2.1 3.1.5 4.2 FADH2 oxidation in the respiratory chain yields a specific […]

Q.17 Oligomyein blocks the electron transport chain by 1. inhibiting the complex III 2. inhibiting ATP synthesis by preventing influx of protons through ATP synthase 3. inhibiting the complex IV […]

Q.16 Which of the following is a cis-acting element? 1. cAMP response binding protein 2. Operator 3. Repressor 4. Terminator What Are Cis-Acting Elements in Gene Regulation? Cis-acting elements are […]

Q.15 In prolonged starvation, a minimum glucose level is maintained for supplying glucose to brain and RBCs. This is achieved by 1. glycogenolysis in liver 2. gluconeogenesis in liver and […]

Q.14 Glycerol kinase is not expressed in 1. adipose tissue 2. liver 3. kidney 4. heart Glycerol kinase is absent in adipose tissue, making it the correct answer to this […]

Q.13 Patients with Galactosemia are advised not to take dairy products because 1. they have defective B-galactosidase and cannot digest lactose in dairy products 2. they cannot metabolize galactose digestion […]

Q.12 What is true about MHC class II? 1. Present extracellular peptides to CD8+ cells 2. Present intracellular peptides to CD8+ cells 3. Present extracellular peptides to CD4+ cells 4. […]

Q.11 Upon re-exposure to a previous pathogen, which immune response will be most likely the fastest one? 1. Innate immunity 2. Complement activation 3. Adaptive immunity and immunological memory 4. […]

Q.10 What is not true about endotoxin? 1. Endotoxin is heat-stable 2. Endotoxin is strongly immunogenic 3. Endotoxin is present in gram negative bacteria 4. Endotoxin is a lipid in […]