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TLS Online TPP Program
#Question id: 1619
#SCPH28 | Zoology
Which of the following statements is TRUE of interferons?
TLS Online TPP Program
#Question id: 7760
#I Life Science/ Life Sciences Group – I-V
In general, the hormones that regulate senescence can be divided into two basic categories based on their most commonly observed effects:
I) positive (promoting) senescence regulators and
II) negative (repressing) senescence regulators
a) Hormones involved-Ethylene, Abscisic acid (ABA)
b) Hormones involved-Brassinosteroids (BRs), Salicylic acid (SA), Jasmonic acid (JA)
c) Hormones involved-Cytokinin, Auxin, Gibberellin (GAs)
Select correct combinations from given hormones which are involved in regulators?
TLS Online TPP Program
#Question id: 13062
#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.
A restriction enzyme cleaves a circular plasmid vector to produce fragments : 1kb, 0.3kb, 2kb, 1kb and 0.3kb. How many bands will be visible on agarose gel?
TLS Online TPP Program
#Question id: 366
#I Life Science/ Life Sciences Group – I-V
What is the pH of a solution with a hydroxyl ion (OH-) concentration of 10-10 M?
TLS Online TPP Program
#Question id: 18890
#SCPH01 Biochemistry
Which part of the light microscope controls the intensity of light entering the viewing area?