Which of the following is capable of existing as a pair of enantiomers?

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#Question id: 47

#Part-A Aptitude & General Biotechnology

If 30 J of energy is added to water in the form of heat at 27°C, what is the change in entropy of water?

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#Question id: 2084

#Part-A Aptitude & General Biotechnology

Which two organelles are responsible for producing phospholipids and sphingolipids?

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#Question id: 21728

#Part-B Specialized Branches in Biotechnology

In the reaction A → products, we find that when [A] has fallen to half of its initial value, the reaction proceeds at the same rate as its initial rate. Is the reaction zero order, first order, or second order?

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#Question id: 13061

#Part-A Aptitude & General Biotechnology

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.

Arrange in the order of their increasing capacity:

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#Question id: 672

#Part-A Aptitude & General Biotechnology

An ideal α-helix has a pitch of 0.54 nm and a rise of 0.15 nm. What is the length along the helix axis for a segment of an ideal α-helix that contains 30 amino acids?