Category: GATE Biotechnology Previous Year Papers with Solutions

50. Match the antibiotics in Group I with their modes of action in Group II. Group I Group II P) Chloramphenicol 1) Inhibits protein synthesis by acting on 30S ribosomal […]

49. Choose the CORRECT sequence of steps involved in cytoplast production. (A) Digestion of cell wall → protoplast viability → cybrid formation → osmotic stabilizer (B) Osmotic stabilizer → digestion […]

48. Saccharomyces cerevisiae produces ethanol by fermentation. The theoretical yield of ethanol from 2.5 g of glucose is __________ g. Theoretical Yield of Ethanol from 2.5 g Glucose in Saccharomyces […]

47. Match the reagents in Group I with their preferred cleavage sites in Group II. Group I Group II P) Cyanogen bromide 1) Carboxyl side of methionine Q) o-Iodosobenzoate 2) […]

46. Plasmid DNA (0.5 μg) containing an ampicillin resistance marker was added to 200 μL of competent cells. The transformed competent cells were diluted 10,000 times, out of which 50 […]

45. Match the microorganisms in Group I with their fermentation products in Group II. Group I Group II P) Leuconostoc mesenteroides 1) Cobalamin Q) Rhizopus oryzae 2) Sorbose R) Gluconobacter […]

44. Oxygen transfer was measured in a stirred tank bioreactor using dynamic method. The dissolved oxygen tension was found to be 80% air saturation under steady state conditions. The measured […]

43. Match the cells in Group I with their corresponding entries in Group II. Group I Group II P) Mast cells 1) Activation of the complement pathway Q) Natural killer […]

42. The limit of the function (1 + 1/n)n as n → ∞ is (A) ln x (B) ln(1/x) (C) e−x (D) ex Limit of (1 + 1/n)n as n […]

41. Match the drugs in Group I with their mechanism of action in Group II. Group I Group II P) Paclitaxel 1) Inhibits protein translation Q) Colchicine 2) Inhibits microtubule […]