Isotopes of an element have ————–

TLS Online TPP Program

#Question id: 23191

#SCPH06 I Botany

In stimulated emission depletion (STED) microscopy the focused excitation laser point is surrounded by a 

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#Question id: 9577

#SCPH06 I Botany

The epidermal coloration of the African grasshopper is a striking example of irreversible developmental responses to environmental conditions. Which of the following statements is true?

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#Question id: 13065

#SCPH28 | Zoology

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

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#Question id: 8953

#SCPH28 | Zoology

The blastopore denotes the presence of an endoderm-lined cavity in the developing embryo, a cavity that is known as the

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#Question id: 6973

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

Which of the following cells would be considered differentiated?