TLS Online TPP Program

#Question id: 2793


Chromosome painting involves

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology
  1. staining chromosomes with Giemsa reagent.

  2. hybridizing fluorescent probes to chromosomes.

  3. hybridizing radioactive probes to chromosomes.

  4. a and b

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TLS Online TPP Program

#Question id: 4747

#Section 3: Genetics, Cellular and Molecular Biology

How does incomplete dominance differ from incomplete penetrance?

TLS Online TPP Program

#Question id: 3260

#Section 3: Genetics, Cellular and Molecular Biology

Consider a diploid population at Hardy-Weinberg equilibrium. For a locus with two alleles, the frequency of the A1A1 genotype is 0.04) The frequency of A2 allele is

TLS Online TPP Program

#Question id: 15468

#Section 4: Fundamentals of Biological Engineering

In downstream processing of gluconic acid, concentrated fermentation broth containing 20% (w/w) gluconic acid is cooled in a heat exchanger prior to crystallisation. 2000 kg h-1 liquid leaving an evaporator at 90°C must be cooled to 6°C. Cooling is achieved by heat exchange with 2700 kg h-1 water initially at 2°C. The final temperature of the cooling water is 50°C. 
Assume (heat capacity of gluconic acid is 0.35 cal g-1 °C-1).
h (liquid water at 90°C = 376.9 kJ kg-1)
h (liquid water at 6°C = 25.2 kJ kg-1)
h (liquid water at 2°C = 8.4 kJ kg-1 )
h (liquid water at 50°C = 209.3 kJ kg-1)
h (gluconic acid at 90°C=0)
How much heat is removed to the cooling water?

TLS Online TPP Program

#Question id: 2308

#Section 3: Genetics, Cellular and Molecular Biology

In what way are the Archaea more similar to the Eukarya than to the Bacteria?

TLS Online TPP Program

#Question id: 14229

#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. By how much are the cooling-water requirements reduced after the new coil is installed?_____________