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TLS Online TPP Program
#Question id: 3595
#Section 3: Genetics, Cellular and Molecular Biology
Ranch mink with the dark gray coat color known as Aleutian is homozygous recessive aa. Genotypes AA and Aa have the standard deep brown color. A mating of Aa X Aa produces four pups. What is the probability of a perfect 3 : 1 distribution of standard to Aleutian?
TLS Online TPP Program
#Question id: 13059
#Section 7: Recombinant DNA technology and Other Tools in 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.
Efficiency during ligation of blunt ended insert and vector cannot be cannot be enhanced by means of…..
TLS Online TPP Program
#Question id: 3936
#Section 3: Genetics, Cellular and Molecular Biology
The large RNA-protein complex that processes introns and exons is called __.
TLS Online TPP Program
#Question id: 1640
#Section 2: General Biology
An immune response against grass pollen often involves:
TLS Online TPP Program
#Question id: 19530
#Section 4: Fundamentals of Biological Engineering
If air consists of 77% by weight of nitrogen and 23% by weight of oxygen calculate:
(i) the mean molecular weight of air,
(ii) the mole fraction of oxygen,
(iii) the concentration of oxygen in mole/m3 and kg/m3 if the total pressure is 1.5 atmospheres and the temperature is 25 °C.