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TLS Online TPP Program

#Question id: 5307

Which of the following techniques would be most appropriate to test the hypothesis that humans and chimps differ in the expression of a large set of shared genes?

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

  1.  DNA microarray analysis

  2. polymerase chain reaction (PCR)

  3. DNA sequencing

  4. protein-protein interaction assays

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TLS Online TPP Program

#Question id: 14226

#Section 5: Bioprocess Engineering and Process Biotechnology

A fermenter is maintained at 35⁰C by water circulating at a rate of 0.5 kg s^-1 in a cooling coil inside the vessel. The inlet and outlet temperatures of the water are 8⁰C and 15⁰C respectively. The length of the cooling coil is increased by 50%. In order to maintain the same fermentation temperature, the rate of heat removal must be kept the same. Determine the new cooling-water flow rate and outlet temperature by carrying out the following calculations. The heat capacity of the cooling water can be taken as 4.18 kJ kg^- 1 o C^- 1. Determine the mean temperature difference with the original coil.
TLS Online TPP Program

#Question id: 532

#Section 4: Fundamentals of Biological Engineering

In glycolysis, fructose 1,6-bisphosphate is converted to two products with a standard free-energy change (DG'°) of 23.8 kJ/mol.  Under what conditions (encountered in a normal cell) will the free-energy change (DG) be negative, enabling the reaction to proceed to the right?
TLS Online TPP Program

#Question id: 1310

#Section 3: Genetics, Cellular and Molecular Biology

In some tissues subject to mechanical stress, special junctions which connect the cytoskeletons of adjacent cells.
TLS Online TPP Program

#Question id: 14316

#Section 5: Bioprocess Engineering and Process Biotechnology

Cellulomonas bacteria used as single-cell protein for human or animal food are produced from glucose under anaerobic conditions. All carbon in the substrate is converted into biomass; ammonia is used as nitrogen source. The molecular formula for the biomass is CHI.5600.54N0.16; the cells also contain 5% ash. How does the yield of biomass from substrate in mass and molar terms compare with the maximum possible biomass yield?
TLS Online TPP Program

#Question id: 3896

#Section 3: Genetics, Cellular and Molecular Biology

Which one of the following is not involved in steroid hormone action?