A nonfunctional CD4 protein on a helper T cell would result in the helper T cell being unable to ________.

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#Question id: 4128

#Part-A Aptitude & General Biotechnology

Which of the following statements about tRNA molecules is false?

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#Question id: 8910

#Part-B Specialized Branches in Biotechnology

Both animals and fungi are heterotrophic. What distinguishes animal heterotrophy from fungal heterotrophy is that only animals derive their nutrition

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#Question id: 13062

#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.

A restriction enzyme cleaves a circular plasmid vector to produce fragments : 1kb, 0.3kb, 2kb, 1kb and 0.3kb. How many bands will be visible on agarose gel?

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#Question id: 22902

#Part-B Specialized Branches in Biotechnology

What is a cell line?

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#Question id: 4199

#Part-A Aptitude & General Biotechnology

The peptide bond is formed by