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76. The term “paedomorphosis” refers to (A) Accelerated reproductive development as compared to somatic development (B) A transient stage in the developmental event (C) Two independent structures resembling each other, […]

75. An E. coli strain is grown initially on glucose as the sole carbon source. Upon complete consumption of glucose following 12 h of growth, lactose is added as the […]

74. The volume (in ml) of a 1.0mg/mlstock solution of ampicillin to be added to 0.1 liter of growth medium for achieving a final ampicillin concentration of 50𝜇 g/ml is […]

73. A bacterial culture is grown using 2.0mg/ml fructose as the sole source of carbon and energy. The bacterial biomass concentrations immediately after inoculation and at the end of the […]

72. The doubling time (in minutes) of a bacterium with a specific growth rate of 2.3 h−1 in 500 ml of growth medium is ____ Calculate Bacterial Doubling Time from […]

71. If the decimal reduction time for spores of a certain bacterium at 121∘C is 12 seconds, the time required (in minutes) to reduce 1010 spores to one spore by […]

70. The working volume (in liter) of a chemostat with 0.1 h−1 dilution rate and 100ml/h feed flow rate is ____ Chemostats are essential bioreactors in microbiology and biotechnology for […]

69. An oil immersion objective of a light microscope has a numerical aperture of 1.25 . Using the Abbé equation, the maximum theoretical resolving power (in nm) of the microscope […]

68. Which one of the following about the standard free energy change ( Δ𝐺∘′) and the equilibrium constant ( 𝐾𝑒𝑞 ) of an exergonic reaction, at pH 7.0 , is […]

67. Which combination of profiles in the following figure accurately represents the transport rate of glycerol and oxygen into 𝐸. coli cells as a function of their extracellular concentration? (A) […]