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TLS Online TPP Program

#Question id: 36201

Which of the following statements is/are correct about PAM Matrix ? 

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology
  1. A PAM unit is defined as 1% amino acid change or one mutation per 100 residues.
  2. The increasing PAM numbers correlate with increasing PAM units and thus evolutionary distances of protein sequences.
  3. PAM250, which corresponds to 20% amino acid identity, represents 250 mutations per 100 residues.
  4. PAM matrices with lower serial numbers are more suitable for aligning more closely related sequences.
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TLS Online TPP Program

#Question id: 14282

#Section 5: Bioprocess Engineering and Process Biotechnology

The oxygen transfer rate in an aerobic fermentation process does not depend on the
TLS Online TPP Program

#Question id: 14283

#Section 5: Bioprocess Engineering and Process Biotechnology

Aeration ina fermenter is expressed as VVM. What will be the VVM if air is sparged at 2000 L/min with a working volume 10 m^3? 
TLS Online TPP Program

#Question id: 14284

#Section 5: Bioprocess Engineering and Process Biotechnology

The specific productivity (qp) of an enzyme production Is fitted linearly with specific growth rate p of a fungal organism according to the equation The estimated values of constants alpha and beta are 0.0006 and 25 respectively. The enzyme production kinetics is 
TLS Online TPP Program

#Question id: 14285

#Section 5: Bioprocess Engineering and Process Biotechnology

Match the transport process with appropriate time constants given below 

Transport ProcessTime Constants
1. Oxygen transferp. V/Q
2. Heat transferq. 4V(1.5ND3)
3. Flowr. VpCp/UA
4. Mixings. 1/KLa 
TLS Online TPP Program

#Question id: 14286

#Section 5: Bioprocess Engineering and Process Biotechnology

 When a liquid of density 1200kg/m3 and viscosity 0.01 kg m^-1s^-1 flows through a 1 cm ID pipe at 0.2m/s, the flow is referred as a 
TLS Online TPP Program

#Question id: 14287

#Section 5: Bioprocess Engineering and Process Biotechnology

A chemostat is run with a feed rate of llitre/h when the volume of the reactor is also 1 litre. At steady state the doubling time of the cells in the chemostat is.....   h.