TLS Online TPP Program

#Question id: 13065


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.
Agglutination of antigens by utilising specific antibodies can only occur, if

#SCPH28 | Zoology
  1. The concentration of Ag or Ab is at point of equivalence
  2. At point of equivalence or Ab in excess
  3. At point of equivalence or Ag in excess
  4. All the above