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TLS Online TPP Program

#Question id: 5249

What is the best explanation for why Bernard Davis didn't observe generalized transduction in his U tube experiments?

#Section 3: Genetics, Cellular and Molecular Biology

  1. He used genes that could not be packaged into a bacteriophage head

  2. He used bacterial strains that could not fit through the filter

  3. He used bacterial strains that did not host a prophage.

  4. He used virulent bacteriophage

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TLS Online TPP Program

#Question id: 7460

#General Aptitude

How many times do the hands of a clock coincide in a day ?
TLS Online TPP Program

#Question id: 14283

#Section 5: Bioprocess Engineering and Process Biotechnology

Aeration ina fermenter is expressed as VVM. What will be the VVM if air is sparged at 2000 L/min with a working volume 10 m^3? 
TLS Online TPP Program

#Question id: 16823

#Section 1: Engineering Mathematics

Consider the homogeneous ordinary differential y equation x > 0 with dx2 dx y(x) as a general solution. Given that y(1) = 1 and y(2) = 14 the value of y(1.5), rounded off to two decimal places, is   
TLS Online TPP Program

#Question id: 14934

#Section 5: Bioprocess Engineering and Process Biotechnology

E. coli was continuously cultured in a continuous stirred tank fermenter with a working volume of 1.0 I by chemostat. A medium containing 4.0 g1-1 of glucose as a carbon source was fed to the fermenter at a constant flow rate of 0.5 I h-1, and the glucose concentration in the output stream was 0.20 g I-1. The cell yield with respect to glucose YxS was 0.42 g dry cells per gram glucose. Determine specific growth rate 
TLS Online TPP Program

#Question id: 2116

#Section 2: General Biology

When a cell is in equilibrium with its environment, which of the following processes occurs for substances that can diffuse through the plasma membrane?