Practice Questions

TLS Online TPP Program

#Question id: 485

Which of the following statements is incorrect?

#SCPH05 I Biotechnology

Aerobically, oxidative decarboxylation of pyruvate forms acetate that enters the citric acid cycle.
In anaerobic muscle, pyruvate is converted to lactate.
In yeast growing anaerobically, pyruvate is converted to ethanol.
Under anaerobic conditions pyruvate does not form because glycolysis does not occur.

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TLS Online TPP Program

#Question id: 14751

#SCPH05 I Biotechnology

In growth curve graph, in which the biomass is plotted against time, the slope represents

TLS Online TPP Program

#Question id: 14292

#SCPH05 I Biotechnology

Consider the scale up of a fermentation from a 10L to 10000L while maintaining geometric similarity. Agitation speed was maintained at 500 rpm in the 10L fermenter. If scale up is done based on constant tip speed, then the agitation speed in the larger reactor should be

TLS Online TPP Program

#Question id: 13063

#SCPH28 | Zoology

Precision will be reduced, but yield will be increased

Optimisation of a PCR reaction is often a compromise between the competing demands for precision, efficiency and yield. Although the specific effects may vary, generally, increasing the annealing temperature will increase non-specific primer binding and reduce precision. Increasing the length of the elongation phase will reduce the proportion of incomplete newly-synthesised strands and therefore increase yield. In this case, the potential effect on efficiency is unclear. Increasing the elongation phase would increase the reaction time, but the time taken to ramp down to a lower annealing temperature would be reduced.

Which of the statement is worng? Aminopetrin………s

TLS Online TPP Program

#Question id: 11978

#SCPH28 | Zoology

Which of the following statements about the ocean pelagic biome is true?

TLS Online TPP Program

#Question id: 3013

#I Life Science/ Life Sciences Group – I-V

Bacteria survive adverse conditions by forming