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37. The value of c for which the following system of linear equations has an infinite number of solutions is __________. [1 2] [x] = [c] [1 2] [y] [4] […]

36. Which one of the following organisms is responsible for crown gall disease in plants? (a) Xanthomonas campestris (b) Rhizobium etli (c) Agrobacterium tumefaciens (d) Erwinia stewartii Agrobacterium tumefaciens causes crown […]

35. The specific activity of an enzyme in a crude extract of E. coli is 9.5 units/mg of protein. The specific activity increased to 68 units/mg of protein upon ion-exchange […]

34. The concentration (in micromolar) of NADH in a solution with A340 = 0.50 is __________. Given data: Path length = 1 cm; Molar extinction coefficient of NADH ε340 = […]

33. Consider an infinite number of cylinders. The first cylinder haa a radius of 1 meter and height of 1meter. The second one has a radius of 0.5 meter and […]

32. Which one of the following amino acids has three ionizable groups?(a) Glycine (b) Leucine(c) Valine (d) Lysine Which Amino Acid Has Three Ionizable Groups? Glycine, Leucine, Valine or Lysine […]

31. Match the organisms in Column I with the characteristics in Column IIColumn I                                 Column […]

30. The circular dichroism spectra of three proteins P, Q, and R are given below:Choose the correct combination.(a) P: α–helix, Q: β–sheet, and R: Random coil(b) P: β–sheet, Q: α–helix, […]

29. Match the proteins in Group I with cellular processes in Group IIGroup I                           Group IIP. p53    […]

28. The angle (in degrees) between the vectors 𝑥⃗ = 𝑖̂ − 𝑗̂ + 2𝑘̂ and 𝑦⃗ = 2𝑖̂ − 𝑗̂ − 1.5𝑘̂ is __________. The angle is 45 degrees […]