Precipitation reaction are recognise by the formation of

a) Lattice

b) Agglutination

c) Ordered structure of antigen and antidody

d) Antibody must be bivalent

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#Question id: 1734

#SCPH01 Biochemistry

The nuclear AP-1 site responsible for 90% of IL-2 enhancer activity binds:

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#Question id: 11101

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

The rate at which new air is brought into the alveoli and other respiratory pathways is called the

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#Question id: 13055

#SCPH06 I Botany

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 following will provide least specific amplification in qPCR?

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#Question id: 2714

#SCPH05 I Biotechnology

HAT enzymes react with the side-chain of lysine to form the following structure. What effect will the HAT enzymes have on histones?

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#Question id: 2649

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

Which operon behaves similar to Bacillus subtilis trp operon in terms of attenuation?