In bacteria the elongation stage of protein synthesis does not involve:

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#Question id: 13064

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

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 following techniques doesn’t involve use of a secondary antibody?

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#Question id: 21731

#Section 5: Bioprocess Engineering and Process Biotechnology

The smog constituent peroxyacetyl nitrate (PAN) dissociates into peroxyacetyl radicals and NO2(g) in a first order reaction with a half-life of 32 min. 

If the initial concentration of PAN in an air sample is 2.7×10¹⁵ molecules/L, what will be the concentration 2.24 h later?

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#Question id: 17211

#Section 4: Fundamentals of Biological Engineering

Fourier's law applies to the heat transfer by

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#Question id: 3330

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following Population have Hardy- Weinberg equilibrium?

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#Question id: 1144

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following is NOT a common intracellular second messenger?