For  nearly 200  years, biogeographers have  noted that  the  tropics  have  more terrestrial species than  temperate regions. Which of the following is NOT a plausible explanation for this pattern?

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#Question id: 13057

#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.

How primer concentration leads to decrease in PCR efficiency?

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#Question id: 3857

#Part-A Aptitude & General Biotechnology

The CAAT box is usually located near the position:

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#Question id: 18833

#Part-A Aptitude & General Biotechnology

The PCR procedure, where Taq polymerase is added after the rest of the PCR components are heated to the  DNA melting temperature, so as to avoid non-specific amplification at lower temperatures is

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#Question id: 1673

#Part-A Aptitude & General Biotechnology

N-region insertion is associated with the expression of:

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#Question id: 15002

#Part-A Aptitude & General 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?