TLS Online TPP Program

#Question id: 3294


Which one of these processes describes bottleneck effect?

#Section 3: Genetics, Cellular and Molecular Biology
  1. Chance events that change allele frequency

  2. alleles transferred to the next generation in portions that differ from previous generation

  3. transfer of alleles in and out of a population due to movement of fertile individuals

  4. sudden change in environments that alters gene frequency of a populationa

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TLS Online TPP Program

#Question id: 19484

#Section 4: Fundamentals of Biological Engineering

Estimate the degree of reduction of Methane, Glucose and Ethanol?

TLS Online TPP Program

#Question id: 19485

#Section 4: Fundamentals of Biological Engineering

The growth of S.cerevisiae on glucose under anaerobic conditions can be described by the following reaction:
C6H12O6 + aNH3 → 0.59 CH1.64N0.16O0.52 (biomass) + 0.43 C3H8O3 + 1.54CO2 + 1.3C2H5OH +0.036H2O
Determine the biomass (MW= 23.74) yield coefficient Yx/s

TLS Online TPP Program

#Question id: 19486

#Section 4: Fundamentals of Biological Engineering

The growth of S.cerevisiae on glucose under anaerobic conditions can be described by the following reaction:
C6H12O6 + aNH3 → 0.59 CH1.64N0.16O0.52 (biomass) + 0.43 C3H8O3 + 1.54CO2 + 1.3C2H5OH + 0.036H2O 
and determine the product yield coefficient Y etoh/s and determine coefficient a.

TLS Online TPP Program

#Question id: 19487

#Section 4: Fundamentals of Biological Engineering

What is the yield coefficient if the initial substrate concentration is 20 g/l and biomass is 0.2 g/l. The substrate is then consumed and produces 6.0 g/l of biomass?

TLS Online TPP Program

#Question id: 19488

#Section 4: Fundamentals of Biological Engineering

What is the yield coefficient if the initial substrate concentration is 10 g/l and biomass is 0.1 g/l. The substrate is then consumed and produces 5.3 g/l of biomass?

TLS Online TPP Program

#Question id: 19489

#Section 4: Fundamentals of Biological Engineering

The yield coefficient is not used in growth kinetic relationship of which of the following growth kinetics?