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47. For the probability density P(x) = 0.5 e−0.5x the integral ∫0∞ P(x) dx = __________. Probability density functions (PDFs) must integrate to 1 over their allowable range. This question […]

46. If the chemical composition of proteins in an organism is CH1.5O0.3N0.3S0.004, the mass percentage ofcarbon in the proteins is __________. Proteins with the empirical formula CH₁.₅O₀.₃N₀.₃S₀.₀₀₄ contain approximately 53% […]

45. A pedigree of an inheritable disease is shown below. This inheritable disease is(a) X–linked dominant (b) X–linked recessive or Y–linked(c) Only Y–linked (d) Only X–linked recessive Introduction Pedigree charts […]

44. Which one of the following CANNOT be a recognition sequence for a Type II restriction enzyme?(a) GAATTC (b) AGCT(c) GCGGCCGC (d) ATGCCT Type II restriction enzymes recognize specific palindromic […]

43. Shown below is a plasmid vector (P) and an insert (Q). The insert was cloned into the BamHI site ofthe vector. The recombinant plasmid was isolated and digested with […]

42. A recombinant protein is to be expressed under the control of the lac promoter and operator in astrain of E. coli having the genotype lacI+ crp+. Even in the […]

41. The genome is diploid at the end of which phases of a human mitotic cell cycle?(a) G2 & S (b) G1 & M(c) M & S (d) G1 & […]

40. An immunocompetent person becomes infected with a pathogenic strain of bacteria. Which one ofthe following graphs correctly depicts bacterial load in this person over time? Introduction When a healthy, […]

39. For an E. coli culture in the exponential phase of growth, optical density (OD) at 540 nm is 0.3 at 2hours and 0.6 at 4 hours. Assuming that the […]

38. Match the plant hormones in Column I with functions in Column IIColumn I                                  […]