TLS Online TPP Program

#Question id: 2944


DNA replication at each origin occurs only once during the cell cycle because of:

#Section 3: Genetics, Cellular and Molecular Biology
  1. specificity of the origin-recognition complex (ORC).

  2. S phase Cdk phosphorylating MCM helicase.

  3. MCM helicase loading by M phase cyclins.

  4. G1 cyclin/cdk activation of E2F.

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TLS Online TPP Program

#Question id: 20010

#Section 5: Bioprocess Engineering and Process Biotechnology

In an activated sludge process, the biomass is recycled to

TLS Online TPP Program

#Question id: 20011

#Section 5: Bioprocess Engineering and Process Biotechnology

A strain of Escherichia coli has a maximum specific growth rate of 0.8 h-1 on a glucose based medium. If this organism is being grown in a chemostat with a dilution rate of 1.2 h-1, then at steady state the concentration of E. coli in the same medium will

TLS Online TPP Program

#Question id: 20012

#Section 5: Bioprocess Engineering and Process Biotechnology

A fed-batch reactor containing 2 litre of medium and 0.1 g.l-l of biomass is fed with a medium containing 1 g.l-1 of substrate at 1 litre per hour. If after 10 hours, the concentration of biomass in the reactor was 0.2 g.l-1, then the biomass produced during the 10 hour period is

TLS Online TPP Program

#Question id: 20013

#Section 5: Bioprocess Engineering and Process Biotechnology

In fed batch bioreactor modelling, the rate of change in the bioreactor volume is assumed to be equal to

TLS Online TPP Program

#Question id: 20014

#Section 5: Bioprocess Engineering and Process Biotechnology

In plug flow tubular reactor the axial velocity profile on cross-section will be

TLS Online TPP Program

#Question id: 20015

#Section 5: Bioprocess Engineering and Process Biotechnology

The concentration of biomass in a continuous stirred tank reactor is 20 g dry weight per litre. What would be the concentration of biomass in the effluent?