Which of the following are transcription factors?

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#Question id: 752

#SCPH01 Biochemistry

The A260/A280 ratio of a double-stranded DNA sample can be used to assess its purity. The value for the pure DNA is ----------------

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#Question id: 330

#SCPH05 I Biotechnology

Two charges are placed at a certain distance. If the magnitude of each charge is doubled the force will become

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#Question id: 12101

#SCPH28 | Zoology

The sum total of an organism's interaction with the biotic and abiotic resources of its environment is called its

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#Question id: 13065

#SCPH05 I 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.

Agglutination of antigens by utilising specific antibodies can only occur, if

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#Question id: 11915

#SCPH28 | Zoology

Which of the following is the correct prediction about the three types of model such as; Facilitation, Inhibition, Tolerance model.