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.

Efficiency during ligation of blunt ended insert and vector cannot be cannot be enhanced by means of…..

TLS Online TPP Program

#Question id: 26913

#Unit 10. Ecological Principles

Metabolic rate of Ectotherm and endotherm with respect to variable temp, which of the following represented graph is correct?

TLS Online TPP Program

#Question id: 26914

#Unit 10. Ecological Principles

Some given statements about anti freezing are given;

a.some invertebrates to withstand temperatures as low as –18°C without freezing, in presence of glycoproteins

b.Sodium, potassium, or chloride ions involve to increasing  the blood freezing point, so the lack of these ions some species help to lower the blood freezing point

c.Amphibians release large amount of glucose into the blood to prevent freezing of blood in cold

d.Sodium, potassium or urea function as anti freezing in their blood

e.Glycine causes supercooling in plants

Which of the following statements about supercooling/anti freezing is correct?

TLS Online TPP Program

#Question id: 26915

#Unit 10. Ecological Principles

Cell walls allow plant cells to build up large internal hydrostatic pressures called

TLS Online TPP Program

#Question id: 26916

#Unit 10. Ecological Principles

If a plant has a fresh weight of 150 g, a dry weight of 100g, and a turgid weight of 160g, what is its relative water content?

TLS Online TPP Program

#Question id: 26917

#Unit 10. Ecological Principles

Which of the following is the correct prediction about the relative water content or RWC?

a.RWC is involve to measure of turgidity and water contents of plant cell

b.To estimate RWC, three measurements are needed: fresh weight, turgid weight, and dry weight

c.In drought condition, plant will die if the RWC values is less than 100%

d.RWC values closer to 100% indicate plants are less affected by drought stress

TLS Online TPP Program

#Question id: 26918

#Unit 10. Ecological Principles

A place where the summary of the organism’s tolerances and requirements, referred to as