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TLS Online TPP Program
#Question id: 5245
#Unit 8. Inheritance Biology
Which method of gene transfer involves direct contact between the bacteria?
TLS Online TPP Program
#Question id: 494
#Unit 1. Molecules and their Interaction Relevant to Biology
Which of the following statements about the pentose phosphate pathway is correct?
TLS Online TPP Program
#Question id: 23731
#Unit 8. Inheritance Biology
Which one of the following statements is INCORRECT?
TLS Online TPP Program
#Question id: 13204
#Unit 6. System Physiology – Plant
Many of the carriers of Sucrose–H+ symporters in the phloem play various role in transport, most of the transporters are found in source, path, and sink tissues. Some carriers are characterized such as;
a) SUT1, has high-affinity / low-capacity transporter found in the minor veins of source tissues, appears to be important in phloem loading.
b) Important role of SUT1 in phloem loading appears to be complemented by SUT4, which is low-affinity/high-capacity carrier
c) SUT2, appears to function as a sucrose sensor. This is indicated by findings showing that SUT2 is more highly expressed in sink and path tissues than in source leaves.
d) The major sucrose transporters in phloem loading into the companion cells and final uptake into companion cells appears to be the function of SUT4
Which of the following combination is correct?
TLS Online TPP Program
#Question id: 13064
#Unit 13. Methods in Biology
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 techniques doesn’t involve use of a secondary antibody?