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TLS Online TPP Program

#Question id: 35134

Choose the correct statements regarding LexA ? 

#Section 3: Genetics, Cellular and Molecular Biology
  1. At physiological pH, this autocleavage reaction of LexA requires the RecA protein.
  2. The LexA  is inactivated when it catalyzes its own cleavage at a specific Ala–Gly peptide bond.
  3. LexA  activate the transcription of all the SOS genes.
  4. Induction of the SOS response requires removal of LexA.
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TLS Online TPP Program

#Question id: 27315

#Section 5: Bioprocess Engineering and Process Biotechnology

In an exponentially growing batch culture of Saccharomyces cerevisiae, the cell density is 30 𝑔𝐿−1(𝐷𝐶W), the specific growth rate (𝜇) is 0. 4ℎ−1 and substate uptake rate (rs) is 18𝑔𝐿−1ℎ−1. The cell yield coefficient 𝑌𝗑/𝑠 will be
TLS Online TPP Program

#Question id: 27316

#Section 5: Bioprocess Engineering and Process Biotechnology

If the rate of product formation is approximately proportional to the rate of cell growth, then this pattern of product formation is referred to as:
TLS Online TPP Program

#Question id: 27317

#Section 5: Bioprocess Engineering and Process Biotechnology

In microbial cultivation, the expression for product synthesis rp = αµX + βX denotes
TLS Online TPP Program

#Question id: 27318

#Section 5: Bioprocess Engineering and Process Biotechnology

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

#Question id: 27319

#Section 5: Bioprocess Engineering and Process Biotechnology

Which one of the following statements is FALSE. Microbial secondary metabolites are
TLS Online TPP Program

#Question id: 27320

#Section 5: Bioprocess Engineering and Process Biotechnology

Two organisms A and B with the same µmax and Yx/s are cultivated independently in batch culture. They have Ks values of 1 g.l-1 and 3 g.l-1 respectively. Given that the initial substrate concentration was 5 g/l, which of the following is TRUE after complete exhaustion of the substrate?