Of the components of a heterotrimeric G protein, which subunit(s) is(are) able to activate downstream responses?

TLS Online TPP Program

#Question id: 3666

#Unit 3. Fundamental Processes

RNA-directed RNA polymerase, used in replication of some RNA viruses termed as:

TLS Online TPP Program

#Question id: 11301

#Unit 10. Ecological Principles

How is phosphorus returned to the soil from organic phosphorus?

TLS Online TPP Program

#Question id: 1892

#Unit 4. Cell Communication and Cell Signaling

The Arthus reaction is characterized by an intense infiltration by:

TLS Online TPP Program

#Question id: 13056

#Unit 13. Methods in Biology

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.

 Which of the following is true for traditional and real time PCR?

TLS Online TPP Program

#Question id: 10574

#Unit 10. Ecological Principles

Which of the following statements about the evolution of life histories is correct?