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TLS Online TPP Program

#Question id: 19007

For the separation of which of the following substances, Gas-solid chromatography is being used?

#Part-A Aptitude & General Biotechnology
  1. Thermally stable organic components
  2. Volatile organic components
  3. Thermally stable inorganic components
  4. Low molecular weight gaseous species
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TLS Online TPP Program

#Question id: 18663

#Part-A Aptitude & General Biotechnology

When a protein exists in mono-, di- and tri-phosphorylated forms. The difference of a couple of phosphate groups has no significant effect on the overall relative molecular mass of the protein, hence a single band on SDS gels, but the small charge difference introduced on each molecule can be detected by
TLS Online TPP Program

#Question id: 9596

#Part-B Specialized Branches in Biotechnology

The reaction centre chlorophyll is transiently in an oxidized state after losing an electron and before being re-reduced by its electron donor, what characteristics has been shown by chlorophylls in an oxidized state?
TLS Online TPP Program

#Question id: 3019

#Part-A Aptitude & General Biotechnology

During which phase of growth are bacteria most susceptible to antibiotics?
TLS Online TPP Program

#Question id: 8932

#Part-B Specialized Branches in Biotechnology

What is the correct sequence of the following four events during an animalʹs development?
1. gastrulation
2. metamorphosis
3. fertilization
4. cleavage
TLS Online TPP Program

#Question id: 14268

#Part-B Specialized Branches in Biotechnology

An activated-sludge waste treatment system is required to reduce the amount of BOD5 from 1000 mg/l to 20 mg/l at the exit. The sedimentation unit concentrates biomass by a factor of 3. Kinetic parameters are µm = 0.2 h-1 , Ks = 80 mg/l, kd = 0.01 h-1 , and Y M X/S = 0.5 g MLVSS/g BOD5. The flow of waste water is 10000 l/h and the size of the treatment basin is 50,000 l. What is the value of the solids residence time?