TLS Online TPP Program

#Question id: 14338


Quasi steady state condition is 

#SCPH05 I Biotechnology
  1. When Cell concentration remains constant
  2. Cell concentration is virtually variable
  3. Total biomass remains constant with time 
  4. Total biomass decreases with time 
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TLS Online TPP Program

#Question id: 3027

#I Life Science/ Life Sciences Group – I-V

Which of the following contains a copy of the chromosome, along with a small amount of dehydrated cytoplasm, within a tough wall?

TLS Online TPP Program

#Question id: 14860

#SCPH05 I Biotechnology

A fermentation slurry containing Streptomyces kanamyceticus cells is filtered using a continuous rotary vacuum filter. 120 kg h- 1 slurry is fed to the filter; 1 kg slurry contains 60 g cell solids. To improve filtration rates, particles of diatomaceous-earth filter aid are added at a rate of 10 kg h- 1. The concentration of kanamycin in the slurry is 0.05% by weight. Liquid filtrate is collected at a rate of 112 kg h-1; the concentration of kanamycin in the filtrate is 0.045% (w/w). Filter cake containing cells and filter aid is continuously removed from the filter cloth.
 What percentage liquid is the filter cake?

TLS Online TPP Program

#Question id: 14105

#SCPH01 Biochemistry

The first secondary database developed was

TLS Online TPP Program

#Question id: 2627

#I Life Science/ Life Sciences Group – I-V

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

TLS Online TPP Program

#Question id: 14253

#SCPH05 I Biotechnology

Hybridoma cells immobilized on surfaces of Sephadex beads are used in a packed column for production of monoclonoal antibodies (Mab). Hybridoma concentration is approximately X = 5 g/l in the bed. The flow rate of the synthetic medium and glucose concentration are Q = 2 l/h and S0 = 40 g/l, respectively. The rate constant for Mab formation is k = 1 gX/l-d. Assume that there are no diffusion limitations and glucose is the rate limiting nutrient.  Determine the volume of the packed bed for 95% glucose conversion. Bed diameter is D0 = 0.2 m. Neglect the growth of the hybridomas and assume first order kinetics.