Feedback repression involves the turning “off” of enzyme synthesis when the amount of the product has been made in sufficient quantities. The end product of the pathway acts as

TLS Online TPP Program

#Question id: 13054

#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.

What would the expected effect be on a PCR reaction if the primers used were slightly shorter and more variable than the intended oligonucleotide sequences?

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#Question id: 16009

#SCPH05 I Biotechnology

BLAST uses a ______ to find matching words, whereas FASTA identifies identical matching words using the ______.

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#Question id: 5539

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

When does neurulation occur during human pregnancy?

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#Question id: 13040

#SCPH01 Biochemistry

Which of the following is incorrect about Oligonucleotide Design in A microarray? 

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#Question id: 23249

#SCPH28 | Zoology

Which enzyme converts the PPi to ATP in Pyrosequencing?