Which statement is true about the number of initiation and STOP codons?

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#Question id: 1087

#SCPH01 Biochemistry

Scientists have found that extracellular matrix components may induce specific gene expression in embryonic tissues such as the liver and testes. For this to happen, there must be direct communication between the extracellular matrix and the developing cells. Which kind of transmembrane protein would most likely be involved in this kind of induction?

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#Question id: 1619

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

Which of the following statements is TRUE of interferons?

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#Question id: 4126

#SCPH05 I Biotechnology

Which one of the following is true about the genetic code?

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#Question id: 10809

#SCPH06 I Botany

Sieve element sap is rich in sugars and other organic molecules, These molecules represent an energy investment for the plant. How their loss be prevented when sieve elements are damaged?

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#Question id: 13059

#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.

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