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TLS Online TPP Program

#Question id: 3886

Which one of the following statements about the reverse transcriptases of retroviruses and the RNA replicases of other single-stranded RNA viruses, such as R17 and influenza virus, is correct?

#Section 3: Genetics, Cellular and Molecular Biology

  1. Both enzymes can synthesize either RNA or DNA from an RNA template strand.

  2. Both enzymes can utilize DNA in addition to RNA as a template strand.

  3. Both enzymes carry the specificity for the RNA of their own virus.

  4. Both enzymes have error rates similar to those of cellular RNA polymerases.

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TLS Online TPP Program

#Question id: 28107

#Section 5: Bioprocess Engineering and Process Biotechnology

If the equilibrium constant for a chemical reaction at 20° C is 20, the standard free energy change associated with the reaction will be (R=1.98 cal/mol/K):
TLS Online TPP Program

#Question id: 28108

#Section 5: Bioprocess Engineering and Process Biotechnology

Consider the following reversible reaction. In a 3.00 liter container, the following  amounts are found in equilibrium at 400 oC: 0.0420 mole N2, 0.516 mole H2 and 0.0357 mole NH3. Evaluate Keq.

N2(g) + 3H2(g) ↔ 2NH3(g)
TLS Online TPP Program

#Question id: 28109

#Section 5: Bioprocess Engineering and Process Biotechnology

If the equilibrium constant for the reaction
A + 2B ↔ C + 5/2 D
has a value of 4.0, what is the value of the equilibrium constant for the reaction
2C + 5D ↔ 2A + 4B
at the same temperature?
TLS Online TPP Program

#Question id: 28110

#Section 5: Bioprocess Engineering and Process Biotechnology

A certain reaction has a value of Keq = 0.0260 at 25 °C and ΔHrxn=32.4kJ/mol. Calculate the value of Keq at 37 °C. 
TLS Online TPP Program

#Question id: 28111

#Section 5: Bioprocess Engineering and Process Biotechnology
TLS Online TPP Program

#Question id: 28112

#Section 5: Bioprocess Engineering and Process Biotechnology

The ratio of mixing time and circulation time in bioreactor is