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Q.56 A microbial strain is cultured in a 100 L stirred fermenter for secondary metabolite production. If the specific rate of oxygen uptake is 0.4 h-1 and the oxygen solubility […]

Q.55 An aqueous solution containing 6.8 mg/L of an antibiotic is extracted with amyl acetate. If the partition coefficient of the antibiotic is 170 and the ratio of water to […]

Q.54 Moist heat sterilization of spores at 121 °C follows first order kinetics as per the expression: dN/dt = -kdN where, N is the number of viable spores, t is […]

Q.53 If 1 + r + r2 + r3 + … ∞ = 1.5, then, 1 + 2r + 3r2 + 4r3 + … ∞ = (up to two decimal […]

Q.52 The probability distribution for a discrete random variable X is given below. X 1 2 3 4 P(X) 0.3 0.4 0.2 0.1 The expectation value of X is (up […]

Q.51 Calculate the following integral (up to two decimal places) ∫01 (x + 3)(x + 1) dx = ________ The definite integral ∫01 (x + 3)(x + 1) dx evaluates […]

Q.50 5′ capping of mRNA transcripts in eukaryotes involves the following events: P. Addition of GMP on the 5′ end Q. Removal of γ-phosphate of the triphosphate on first base […]

Q.49 Match the industrial products mentioned in Group I with their producer organisms in Group II Group I                          […]

Q.48 A pedigree of an inheritable disease is shown below. What type of inheritance does the disease follow? (A) Autosomal dominant (B) X-linked dominant (C) X-linked recessive (D) Autosomal recessive […]

Q.47 An analysis of DNA-protein interactions was carried out using all DNA-protein complexes in the protein data bank (PDB). The frequency distribution of four amino acid residues, represented as P, […]