When the mammalian brain compares the actual temperature of the body to the preferred temperature of the body, which general component is being used?

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#Question id: 4356

#Part-A Aptitude & General Biotechnology

Gene expression is often assayed by measuring the level of mRNA produced from a gene. What level of the control of gene expression can by analyzed by this type of assay?

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#Question id: 2277

#Part-A Aptitude & General Biotechnology

A gram-positive bacterium is stained _______________ by the gram stain

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#Question id: 15002

#Part-B Specialized Branches in Biotechnology

If you performed a dihybrid cross and found that your results were significantly different from the 9:3:3:1 ratio, what would you suspect?

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#Question id: 13060

#Part-A Aptitude & General 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.

In blue white screening insertional activation of Beta-D-galactosidase will give rise to

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#Question id: 3852

#Part-A Aptitude & General Biotechnology

Which of the following is NOT one of the three stages of transcription?