Who performed classic experiments that supported the semiconservative model of DNA replication?

TLS Online TPP Program

#Question id: 3902

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following is/are incorrect?

TLS Online TPP Program

#Question id: 13060

#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.

In blue white screening insertional activation of Beta-D-galactosidase will give rise to

TLS Online TPP Program

#Question id: 3041

#Section 2: General Biology

Which statement about gram-negative bacteria is correct?

TLS Online TPP Program

#Question id: 18216

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

Which of the following is not correct about FASTA?

TLS Online TPP Program

#Question id: 3897

#Section 3: Genetics, Cellular and Molecular Biology

Gene silencing by RNA interference acts by of the target gene.