A negative agglutination test may NOT indicate the

TLS Online TPP Program

#Question id: 24450

#SCPH06 I Botany

Which of the following method to record an electrogram of the spontaneous electrical activity of the brain?

TLS Online TPP Program

#Question id: 2263

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

Proteins synthesized by the rough ER are

TLS Online TPP Program

#Question id: 13062

#SCPH06 I Botany

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?

TLS Online TPP Program

#Question id: 12683

#SCPH01 Biochemistry

Which is the full complement of DNA from an Organism, carrying all the information needed to specify the structure of every protein?

TLS Online TPP Program

#Question id: 10510

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

Constitutive chemical defenses are effective against many different herbivores, including insects and mammals. Hemlock (Cicuta sp.) produces which toxins that a polyacetylene prolongs the repolarization of neuronal action potentials.