Which of the following is not a protein or group of proteins required for conjugation to occur?

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#Question id: 12728

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Name the type of RNA which folds up to give a cloverleaf secondary structure.

TLS Online TPP Program

#Question id: 13065

#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.

Agglutination of antigens by utilising specific antibodies can only occur, if

TLS Online TPP Program

#Question id: 3527

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following genetic cross would produce 1/4 yellow round, 1/4 yellow wrinkle, 1/4 Green round and ¼ Green Wrinkle seeded plant?

TLS Online TPP Program

#Question id: 4353

#Section 3: Genetics, Cellular and Molecular Biology

The cAMP receptor protein (CRP) is said to be responsible for positive regulation of the lac operon because __.

TLS Online TPP Program

#Question id: 27330

#Section 5: Bioprocess Engineering and Process Biotechnology

The ethanol yield per unit mass of substrate consumed (YP/S) in an anaerobic fermentation process can be improved by