A 200-1itre stirred fermenter contains a batch culture of Bacillus subtilis bacteria at 28⁰C Air at 20⁰C is pumped into the vessel at a rate of 1 vvm; (vvm stands for volume of gas per volume of liquid per minute). The average pressure in the fermenter is 1 atm. The volumetric flow rate of off-gas from the fermenter is measured as 189 l min^-1. The exit gas stream is analysed for oxygen and is found to contain 20.1% 0₂. The dissolved-oxygen concentration in the broth is measured using an oxygen electrode as 52% air saturation. The solubility of oxygen in the fermentation broth at 28⁰C and 1 atm air pressure is 7.8 x 10^-3 kg m^-3. Determine the value of k_La for the system ____________

#Question id: 2531

#Section 3: Genetics, Cellular and Molecular Biology

The specific linkages between sugar rings, including the specific carbons that are linked together and the configuration of the linkage, are important for the properties of the polysaccharide;

 I) Amylose                             a)β(1,3)-linkages                                  

 II) Cellulose                            b) β (1,4)-linkages

  III) Callose                             c) α(1,4)-linked

                                                 d) α (1,3)-linkages

Which of the following linkage combination is correct linkages of the polysaccharides?

#Question id: 2539

#Section 3: Genetics, Cellular and Molecular Biology

Which structure is common to plant and animal cells?

#Question id: 2604

#Section 3: Genetics, Cellular and Molecular Biology

Best inducer of the lac operon;

#Question id: 2608

#Section 3: Genetics, Cellular and Molecular Biology

Which amino acid is involved in last step;

#Question id: 2627

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Binding of repressor on to the operator sequences, RNA polymerase binding is analyzed by; Which one is incorrect.

#Question id: 2682

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

DNA fingerprinting recognizes the differences in