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TLS Online TPP Program

#Question id: 3865

Which of the following statements about E. coli RNA polymerase is false?

#SCPH05 I Biotechnology

  1. Core enzyme selectively binds promoter regions, but cannot initiate synthesis without a sigma factor.

  2. RNA polymerase holoenzyme has several subunits.

  3. RNA produced by this enzyme will be completely complementary to the DNA template.

  4. The enzyme adds nucleotides to the 3' end of the growing RNA chain.

More Questions
TLS Online TPP Program

#Question id: 10983

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

If the S-A node discharges at 0.00 seconds, when will the action potential normally arrive at the AV bundle (bundle of His)?
TLS Online TPP Program

#Question id: 19348

#SCPH28 | Zoology

Nuclear gene rbcs encodes the smaller subunit of
TLS Online TPP Program

#Question id: 5094

#SCPH28 | Zoology

Cell migration occurs extensively during ________.
TLS Online TPP Program

#Question id: 1563

#SCPH05 I Biotechnology

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

#Question id: 13056

#SCPH05 I 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.
 Which of the following is true for traditional and real time PCR?