TLS Online TPP Program

#Question id: 2011


Brutonʹs disorder might occur because of which of the following molecular problems?

#Section 2: General Biology
  1. failure of heavy chain rearrangement in B cells

  2. failure to incorporate CD4 receptors into cell membranes

  3. underexpression of the gene for the beta chain of the T cell receptor

  4. underexpression of the gene for the CD8 receptor molecule

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TLS Online TPP Program

#Question id: 14269

#Section 5: Bioprocess Engineering and Process Biotechnology

An activated-sludge waste treatment system is required to reduce the amount of BOD5 from 1000 mg/l to 20 mg/l at the exit. The sedimentation unit concentrates biomass by a factor of 3. Kinetic parameters are µm = 0.2 h-1 , Ks = 80 mg/l, kd = 0.01 h-1 , and Y M X/S = 0.5 g MLVSS/g BOD5. The flow of waste water is 10000 l/h and the size of the treatme nt basin is 50,000 l. What value of the recycle ratio must be used?

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TLS Online TPP Program

#Question id: 3853

#Section 3: Genetics, Cellular and Molecular Biology

In E. coli, promoter sequences are located at which of the following position(s) on the template strand?

TLS Online TPP Program

#Question id: 15869

#Section 6: Plant, Animal and Microbial Biotechnology

In a modest laboratory, aseptic handling, maintenance and observation of cultures, these activities can be done in the culture room.  Some facilities are required for the culture room, except?

TLS Online TPP Program

#Question id: 14190

#Section 5: Bioprocess Engineering and Process Biotechnology

Aerobic degradation of an organic compound by a mixed culture of organisms in waste water can be represented by the following reaction

               

Determine RQ for the organisms

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TLS Online TPP Program

#Question id: 20418

#Section 5: Bioprocess Engineering and Process Biotechnology

Continuous culture has an advantage over to a batch cultures as