TLS Online TPP Program

#Question id: 36308


Which of the following is/are correct regarding progressive alignment ?

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology
  1. Progressive alignment depends on the stepwise assembly of multiple alignment and is heuristic in nature.
  2. Needleman–Wunsch global alignment method used.
  3. The scores can either be percent identity or similarity scores based on a particular substitution matrix. Both scores correlate with the evolutionary distances between sequences.
  4. Clustal  is a progressive Multiple alignment method.
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TLS Online TPP Program

#Question id: 27355

#Section 3: Genetics, Cellular and Molecular Biology

How does the guide RNA help the cell know where to cut the DNA?

TLS Online TPP Program

#Question id: 27356

#Section 3: Genetics, Cellular and Molecular Biology

What is the role of the guide RNA?

TLS Online TPP Program

#Question id: 27359

#Section 5: Bioprocess Engineering and Process Biotechnology

A double reciprocal plot was created from the specific growth rate and limiting-substrate concentration data obtained from a chemostat experiment. A linear regression gave values of 1.25 h and 100 mg hL-1 for the intercept and slope, respectively.
(a) The respective values of the Monod kinetic constants μm (h-1) and K. (mg L-¹) are as follows:

TLS Online TPP Program

#Question id: 27360

#Section 5: Bioprocess Engineering and Process Biotechnology

The same culture (with the m and K, values as computed above) is cultivated in a 10 L chemostat being operated with a 50 mL min-1 sterile feed containing 50 g L-1 of substrate. Assuming an overall yield coefficient of 0.3 (g- DCW) (g- substrate), the respective values of the outlet biomass and substrate concentrations are

TLS Online TPP Program

#Question id: 27361

#Section 5: Bioprocess Engineering and Process Biotechnology

A continuous stirred tank bioreactor produces 48 kg lysine.day-1. If the volumetric productivity is 2 g.l-1.h-1, the volume of the reactor is:

TLS Online TPP Program

#Question id: 27362

#Section 5: Bioprocess Engineering and Process Biotechnology

Continuous stirred tank fermenter is characterized by (biomass concentration X kg/m3, residual substrate is S kg/m3, Sf=substrate concentration in feed kg/m3, Dilution rate = D and µm>>D and Km<Sf, XD= the biomass productivity kg/m3h. If the dilution rate is doubled to 2D then the new steady state values in comparison with earlier steady state is characterized by