Most newly emerging diseases, no matter how severe their effects on a population, human or otherwise, have which of the following in common?

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#Question id: 1641

#Section 2: General Biology

Why are secondary antibody responses better?

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#Question id: 15604

#Section 6: Plant, Animal and Microbial Biotechnology

The bacteria which cause septicaemia are fast becoming resistant to the antibiotics used for controlling them. Which one of the following explanations fits best?

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#Question id: 1990

#Section 2: General Biology

B cells interacting with helper T cells are stimulated to differentiate when

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#Question id: 5244

#Section 3: Genetics, Cellular and Molecular Biology

Transformation can used to map bacterial gene, which of the following statement is correct?

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#Question id: 13063

#Section 7: Recombinant DNA technology and Other Tools in 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 statement is worng? Aminopetrin………s