TLS Online TPP Program

#Question id: 14151


Which of the following statement is true?
A) PAM matrices are derived from an evolutionary model whereas the BLOSUM matrices consist of entirely direct observations. 
B) Because of BLOSUM matrices have less evolutionary meaning that is why the PAM matrices are used most often for reconstructing phylogenetic trees.
C) BLOSUM matrices are entirely derived from local sequence alignments of conserved sequence blocks, whereas the PAM matrix is based on the global alignment of full-length sequences.
D) BLOSUM matrices are more advantageous in searching databases and finding conserved domains in proteins.

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology
  1. Option A and B
  2. Option A and C
  3. Option C and D
  4. All of the above 
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TLS Online TPP Program

#Question id: 27590

#Section 5: Bioprocess Engineering and Process Biotechnology

The pressure gauge on an autoclave reads 15 psi. What is the absolute pressure in the chamber in atm? (Assume atmospheric pressure is 14.7 psi and 1 psi=6.8*10-2 atm

TLS Online TPP Program

#Question id: 27591

#Section 5: Bioprocess Engineering and Process Biotechnology

Gas leaving a fermenter at close to 1 atm pressure and 25°C has the following composition: 78.2% nitrogen, 19.2% oxygen, 2.6% carbon dioxide. Calculate the mass composition of the fermenter off-gas.

TLS Online TPP Program

#Question id: 27592

#Section 5: Bioprocess Engineering and Process Biotechnology

Gas leaving a fermenter at close to 1 atm pressure and 25°C has the following composition: 78.2% nitrogen, 19.2% oxygen, 2.6% carbon dioxide. Calculate the mass of CO2 in each cubic metre of gas leaving the fermenter. [R=0.000082057 m3 atm / K gmol]

TLS Online TPP Program

#Question id: 27593

#Section 5: Bioprocess Engineering and Process Biotechnology

The specific gravity of ethanol is 〖𝟎.𝟕𝟖𝟗〗_"4°C " ^"20°C"  . What is its density at 20°C in kg m-

TLS Online TPP Program

#Question id: 27594

#Section 5: Bioprocess Engineering and Process Biotechnology

In a process the inputs and outputs are shown as in the diagram.
Correct material balance is

TLS Online TPP Program

#Question id: 27595

#Section 5: Bioprocess Engineering and Process Biotechnology

In the given tank, there are two feeds and one output. Consider a 2 hour operation; the feed rates are 4000 kg/hr and 6000 kg/hr. The accumulated material inside the tank is 2000 kg. What is the output rate kg/hr of the material?