Which of the following scoring matrices is one of the best to score an alignment of highly conserved protein sequences?

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#Question id: 2062

#SCPH05 I Biotechnology

Which of the following types of molecules lack hydrophilic domains?

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#Question id: 15559

#SCPH05 I Biotechnology

The majority of the antibiotics have been isolated from 

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#Question id: 13058

#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.

Which of the following true about real time PCR?

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#Question id: 9192

#SCPH06 I Botany

The oak tree pathogen Phytophthora ramorum has migrated 650 km in ten years. West Nile virus spread from New York State to 46 others states in five years. The difference in the rate of spread is probably related to

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#Question id: 1746

#SCPH05 I Biotechnology

Which is the first of the following genes to be upregulated subsequent to T-cell activation?