Which one of the complement protein is the initiator of the MAC

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#Question id: 13062

#SCPH01 Biochemistry

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: 3904

#SCPH28 | Zoology

Which statement about RNA polymerase is false?

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#Question id: 2091

#I Life Science/ Life Sciences Group – I-V

Proteins can be attached to the phospholipid bilayer plasma membrane by covalently linked hydrocarbon groups. Which of the following mechanisms are not employed in this anchoring?

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#Question id: 14827

#SCPH05 I Biotechnology

The structures used for motility in both eukaryotes and prokaryotes are

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#Question id: 2659

#SCPH05 I Biotechnology

The correct option regarding the lac operon in E.coli from the following is