A bacterium entering the body through a small cut in the skin will do which of the following?

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#Question id: 2066

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

Which of the following statements describes a characteristic feature of a carrier protein in a plasma membrane?

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#Question id: 1560

#SCPH05 I Biotechnology

An invertebrate, such as an insect, has innate immunity that can be nonspecific about which pathogens are prevented from harming its metabolism. Which of the following is most likely to function this way in the insectʹs intestine?

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#Question id: 13057

#SCPH01 Biochemistry

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.

How primer concentration leads to decrease in PCR efficiency?

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#Question id: 14694

#SCPH06 I Botany

Two balls are to be drawn from a bag containing 5 red and 7 white balls. Find the chance that they will both be white

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#Question id: 4326

#SCPH05 I Biotechnology

Which of the following is an example of post-transcriptional control of gene expression?