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TLS Online TPP Program

#Question id: 16571

Polyacrylamide gels are formed from the polymerization of acrylamide monomer in the presence of

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology
  1. Agarose
  2. TEMED
  3. APS
  4. bis-acrylamide
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TLS Online TPP Program

#Question id: 14483

#Section 1: Engineering Mathematics

In a garden 40% of the flowers are roses and the rest are carnations. If 25% of the roses and 10% of the carnations are red, the probability that a red flower selected at random is a rose.
TLS Online TPP Program

#Question id: 14179

#Section 5: Bioprocess Engineering and Process Biotechnology

The growth of S. cerevisiae on glucose under anaerobic conditions can be described by the following overall reaction: 

Determine the coefficient R. 
TLS Online TPP Program

#Question id: 15608

#Section 6: Plant, Animal and Microbial Biotechnology

Melanins are light-absorbing biopolymers useful as topical sunscreens, sunlight-protective coatings for plastics, etc. Which gene is used for producing melanin. 
TLS Online TPP Program

#Question id: 24079

#Section 5: Bioprocess Engineering and Process Biotechnology

A scientist conducts an experiment to determine the rate of NO formation in the reaction:
N2(g) + O2(g) → 2NO(g)
If the initial concentration of N2 was 0.500 M and the concentration of N2 was 0.450 M after 0.100 s, what is the rate of NO formation?
TLS Online TPP Program

#Question id: 14277

#Section 5: Bioprocess Engineering and Process Biotechnology

Lactobacillus casei is propagated under essentially anaerobic conditions to provide a starter culture for manufacture of Swiss cheese. The culture produces lactic acid as a by-product of energy metabolism. The system has the following characteristics:

                                                                 

 

A stirred fermenter is operated in fed-batch mode at quasisteady state with a feed flow rate of 4 m3 h-1 and feed substrate concentration of 80 kg m-3. After 6 h, the liquid volume is 40 m3. What mass of cells is produced after 6 h fed-batch operation?

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