plants can store high levels of nitrate, and they can translocate it from tissue to tissue without deleterious effect. Yet if livestock or humans consume plant material that is high in nitrate, they may suffer with,

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#Question id: 10688

#SCPH28 | Zoology

For two species A and B in competition, the carrying capacities, competition coefficients, per capita growth rate and population size are

KA = 1000           KB = 1200    α of B= 1     β of A= .5       rB= .5         r A= .3                

AN= 500                  BN= 200

According to the Lotka-Volterra model, what is growth rate of species A?

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#Question id: 15586

#SCPH05 I Biotechnology

In SI system, the unit of thermal conductivity is

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#Question id: 18641

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

Which one of the following is NOT an algorithm for building phylogenetic trees? 

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#Question id: 13056

#SCPH01 Biochemistry

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?

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#Question id: 3892

#SCPH01 Biochemistry

The DNA binding motif for many prokaryotic regulatory proteins, such as the lac repressor, is: